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Cómo verificar si un texto tiene una marca de agua de ChatGPT (Guía completa 2025)
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Cómo verificar si un texto tiene una marca de agua de ChatGPT (Guía completa 2025)

Aprende 7 métodos probados para verificar si un texto tiene marcas de agua de ChatGPT. Desde herramientas en línea instantáneas hasta técnicas de detección avanzadas—identifica marcadores de IA invisibles en cualquier contenido.

verificar marca de aguadetección marca de aguaverificaciónmétodos de detección

Introducción

¿Necesitas verificar si un fragmento de texto contiene marcas de agua de ChatGPT? Ya sea que estés revisando envíos de estudiantes, examinando documentos, depurando código o simplemente tienes curiosidad, esta guía proporciona siete métodos confiables para detectar marcadores de IA invisibles.

Desde verificadores en línea instantáneos hasta enfoques técnicos avanzados, aprenderás cómo identificar marcas de agua de ChatGPT con confianza—incluso cuando están diseñadas para ser indetectables.

Respuesta rápida: La forma más rápida de verificar

El método de 30 segundos:

  1. Visita GPT Watermark Remover
  2. Pega tu texto (o sube documento)
  3. Haz clic en "Verificar marcas de agua" o "Detectar"
  4. Ve resultados instantáneos

Lo que verás:

  • ✅ "No se detectaron marcas de agua" (texto limpio)
  • ⚠️ "Se encontraron 47 marcas de agua" (desglose detallado)

Tiempo: 5-10 segundos Precisión: 99%+ para marcas de agua basadas en caracteres Privacidad: 100% basado en navegador

Ahora exploremos todos los métodos en detalle.

Método 1: Verificador de marcas de agua en línea (Recomendado)

Por qué este método es el mejor

Ventajas: ✅ No requiere conocimientos técnicos ✅ Resultados instantáneos (menos de 10 segundos) ✅ Detecta todos los tipos comunes de marcas de agua ✅ Resaltado visual de áreas problemáticas ✅ Funciona con documentos (Word, Pages, PDF) ✅ 100% privado (procesamiento en navegador) ✅ Verificaciones gratuitas ilimitadas

Proceso paso a paso

Paso 1: Preparar tu texto

Para texto plano:

  • Copia el texto que quieres verificar
  • No se necesita preparación especial

Para documentos:

  • Mantén el archivo en formato original (.docx, .pages, .pdf)
  • No es necesaria conversión

Paso 2: Acceder al verificador

Navega a GPT Watermark Remover

Paso 3: Ingresar tu contenido

Opción A - Pegar texto:

  • Haz clic en el área de texto
  • Pega contenido (Ctrl+V / Cmd+V)
  • El texto puede ser de cualquier longitud

Opción B - Subir documento:

  • Haz clic en "Subir documento"
  • Selecciona archivo de la computadora
  • Formatos compatibles: .docx, .pages, .pdf, .txt, .rtf

Paso 4: Ejecutar detección

Haz clic en el botón de detección:

  • "Verificar marcas de agua"
  • "Detectar caracteres invisibles"
  • "Analizar texto"

Paso 5: Interpretar resultados

Resultado de texto limpio:

✓ No se detectaron marcas de agua de ChatGPT

Análisis:
- Espacios de ancho cero: 0
- No separadores de ancho cero: 0
- Separadores de ancho cero: 0
- Otros caracteres invisibles: 0

Evaluación: Este texto parece limpio

Resultado de texto con marca de agua:

⚠ Marcas de agua detectadas: 47 caracteres invisibles

Desglose:
- Espacio de ancho cero (U+200B): 23 ocurrencias
- No separador de ancho cero (U+200C): 15 ocurrencias
- Separador de ancho cero (U+200D): 9 ocurrencias

Distribución: Patrón regular detectado
Densidad: 4.7 marcas de agua por 100 caracteres
Probabilidad: Alta probabilidad de marcas de agua de IA

Vista previa de ubicación:
Línea 3: "La​ implementación​ de​ esto..."
Línea 7: "Recomendamos​ usar​ el..."
[Ver todas las ubicaciones]

Recomendación: Eliminar marcas de agua antes de usar

Paso 6: Tomar acción

Según resultados:

  • Sin marcas de agua: El texto está limpio, úsalo libremente
  • Marcas de agua encontradas: Haz clic en "Eliminar marcas de agua" para versión limpia

Interpretar densidad de marca de agua

DensidadRecuento (por 1000 chars)Evaluación
Ninguna0Texto limpio
Muy baja1-5Posiblemente accidental
Baja6-20Sospechoso
Media21-50Probablemente con marca de agua
Alta51-100Definitivamente con marca de agua
Muy alta100+Fuertemente marcado

Método 2: Prueba de comparación de conteo de caracteres

Este método simple revela caracteres invisibles sin ninguna herramienta.

Cómo funciona

Los caracteres invisibles aumentan el tamaño del archivo pero no el conteo visual de caracteres.

Proceso paso a paso

Paso 1: Verificar conteo de caracteres visuales

En Microsoft Word:

  • Selecciona todo el texto (Ctrl+A / Cmd+A)
  • Verifica barra de estado (muestra conteo de caracteres)
  • Nota: "1,247 caracteres"

En Google Docs:

  • Herramientas → Conteo de palabras
  • Nota conteo de caracteres (con espacios)

En cualquier editor de texto:

  • Selecciona todo y copia
  • Pega en contador de caracteres (busca "contador de caracteres en línea")
  • Nota el conteo

Paso 2: Verificar tamaño en bytes

Windows:

# Guarda texto como archivo UTF-8, luego:
dir /s nombrearchivo.txt
# Nota tamaño en bytes

Mac/Linux:

wc -c nombrearchivo.txt
# Devuelve conteo de bytes

O usar programación:

const text = "Tu texto aquí";
const byteSize = new Blob([text]).size;
console.log(`Bytes: ${byteSize}`);

Paso 3: Comparar

Caracteres visuales: 1,247
Tamaño en bytes: 1,312 bytes

Diferencia: 65 bytes
Caracteres invisibles: ~21 (asumiendo 3 bytes por carácter)

Veredicto: El texto contiene caracteres invisibles (probablemente marcas de agua)

Regla general:

  • Diferencia < 5 bytes: Probablemente limpio
  • Diferencia 5-20 bytes: Posiblemente algunos caracteres invisibles
  • Diferencia > 20 bytes: Probablemente con marca de agua

Limitaciones

  • No identifica qué caracteres o dónde
  • Diferentes codificaciones afectan conteos de bytes
  • No puede distinguir entre marcas de agua y Unicode legítimo

Método 3: Verificación de visibilidad en editor de texto

La mayoría de los editores de texto pueden revelar caracteres invisibles si sabes dónde buscar.

Microsoft Word

Método A: Mostrar marcas de formato

  1. Haz clic en pestaña "Inicio"
  2. Haz clic en ¶ (botón Mostrar/Ocultar) en grupo Párrafo
  3. Busca puntos o marcas inusuales entre palabras
  4. El espacio normal se muestra como · (punto medio)
  5. Los caracteres invisibles se muestran como pequeñas cajas o nada

Método B: Prueba de copiar y pegar

  1. Copia texto al Bloc de notas simple
  2. Pega y busca:
    • Saltos de línea inesperados
    • Espaciado inusual
    • Comportamiento extraño del cursor
  3. Intenta seleccionar texto—los caracteres invisibles se muestran como huecos de selección

Método C: Función buscar

  1. Presiona Ctrl+F
  2. Haz clic en "Más >>"
  3. Busca: ^u200B
  4. Si se encuentra: marcas de agua presentes
  5. Repite para: ^u200C, ^u200D, ^u00AD, ^u2060

VS Code / Editores de texto

Habilitar visualización de espacios en blanco:

VS Code:

  1. Ver → Renderizar espacios en blanco
  2. O presiona Ctrl+Shift+P → "Ver: Alternar renderizar espacios en blanco"
  3. Los caracteres invisibles se muestran como puntos de colores o símbolos

Sublime Text:

  1. Ver → Mostrar consola
  2. Pega código de detección:
import re
text = view.substr(sublime.Region(0, view.size()))
count = len(re.findall(r'[\u200B-\u200D\uFEFF\u00AD\u2060]', text))
sublime.message_dialog(f"Marcas de agua encontradas: {count}")

Notepad++:

  1. Ver → Mostrar símbolo → Mostrar todos los caracteres
  2. Los caracteres invisibles aparecen como símbolos especiales
  3. O usa Buscar (Ctrl+F) → modo Extendido
  4. Busca: \x{200B}, \x{200C}, \x{200D}

Método 4: Verificación de herramientas de desarrollo del navegador

Para usuarios técnicos, las herramientas de desarrollo del navegador proporcionan detección poderosa.

Herramientas de desarrollo de Chrome/Edge

Paso 1: Abrir herramientas de desarrollo

  • Presiona F12 o Ctrl+Shift+I (Windows)
  • Presiona Cmd+Option+I (Mac)

Paso 2: Ir a consola Haz clic en pestaña "Consola" arriba

Paso 3: Pegar texto en variable

const text = `Pega tu texto aquí`;

Paso 4: Ejecutar código de detección

// Verificación completa de marcas de agua
function checkWatermarks(text) {
  const types = {
    'Espacio de ancho cero': /\u200B/g,
    'No separador de ancho cero': /\u200C/g,
    'Separador de ancho cero': /\u200D/g,
    'Guión suave': /\u00AD/g,
    'Separador de palabras': /\u2060/g,
    'Marca de orden de bytes': /\uFEFF/g
  };

  console.log('%c=== Resultados de detección de marcas de agua ===', 'color: blue; font-size: 16px; font-weight: bold');

  let totalFound = 0;
  const findings = [];

  for (const [name, pattern] of Object.entries(types)) {
    const matches = text.match(pattern);
    const count = matches ? matches.length : 0;

    if (count > 0) {
      console.log(`%c${name}: ${count}`, 'color: red; font-weight: bold');
      totalFound += count;
      findings.push({ name, count });
    }
  }

  if (totalFound === 0) {
    console.log('%c✓ ¡No se detectaron marcas de agua!', 'color: green; font-size: 14px; font-weight: bold');
  } else {
    console.log(`%c\n⚠ Total de marcas de agua encontradas: ${totalFound}`, 'color: red; font-size: 14px; font-weight: bold');

    // Calcular densidad
    const density = (totalFound / text.length * 1000).toFixed(2);
    console.log(`%cDensidad: ${density} por 1000 caracteres`, 'color: orange');

    // Mostrar primera ocurrencia
    const firstMatch = text.search(/[\u200B-\u200D\uFEFF\u00AD\u2060]/);
    if (firstMatch !== -1) {
      const preview = text.substring(Math.max(0, firstMatch - 20), firstMatch + 20);
      console.log(`%cContexto de primera ocurrencia: "${preview}"`, 'color: purple');
    }
  }

  return { totalFound, findings };
}

// Ejecutar la verificación
checkWatermarks(text);

Paso 5: Revisar salida de consola

Los resultados aparecen con código de colores:

  • Verde: Sin marcas de agua
  • Rojo: Marcas de agua encontradas
  • Números mostrando recuento por tipo

Avanzado: Mapeo de posición

Encontrar ubicaciones exactas:

function mapWatermarkPositions(text) {
  const pattern = /[\u200B-\u200D\uFEFF\u00AD\u2060]/g;
  const positions = [];

  let match;
  while ((match = pattern.exec(text)) !== null) {
    const char = match[0];
    const pos = match.index;
    const line = text.substring(0, pos).split('\n').length;
    const col = pos - text.lastIndexOf('\n', pos - 1);

    positions.push({
      character: `U+${char.charCodeAt(0).toString(16).toUpperCase()}`,
      position: pos,
      line: line,
      column: col,
      context: text.substring(pos - 10, pos + 10).replace(/[\u200B-\u200D\uFEFF\u00AD\u2060]/g, '[⚠]')
    });
  }

  console.table(positions);
  return positions;
}

mapWatermarkPositions(text);

Esto crea una tabla mostrando:

  • Tipo de carácter (código Unicode)
  • Posición exacta
  • Números de línea y columna
  • Contexto circundante

Método 5: Detección por línea de comandos

Para desarrolladores, los scripts proporcionan automatización poderosa.

Script de Python

#!/usr/bin/env python3
"""
Verificar texto para marcas de agua de ChatGPT
Uso: python check_watermarks.py archivo.txt
"""

import sys
import re
from pathlib import Path

# Patrón de caracteres invisibles
PATTERN = r'[\u200B-\u200D\uFEFF\u00AD\u2060]'

WATERMARK_TYPES = {
    '\u200B': 'Espacio de ancho cero',
    '\u200C': 'No separador de ancho cero',
    '\u200D': 'Separador de ancho cero',
    '\u00AD': 'Guión suave',
    '\u2060': 'Separador de palabras',
    '\uFEFF': 'Marca de orden de bytes'
}

def check_file(filepath):
    """Verificar archivo para marcas de agua"""
    try:
        with open(filepath, 'r', encoding='utf-8') as f:
            text = f.read()

        # Encontrar todas las marcas de agua
        matches = re.finditer(PATTERN, text)
        watermarks = list(matches)

        print(f"\n{'='*60}")
        print(f"Archivo: {filepath}")
        print(f"{'='*60}")

        if not watermarks:
            print("✓ No se detectaron marcas de agua")
            return False

        # Contar por tipo
        type_counts = {}
        for match in watermarks:
            char = match.group()
            char_type = WATERMARK_TYPES.get(char, 'Desconocido')
            type_counts[char_type] = type_counts.get(char_type, 0) + 1

        # Reportar hallazgos
        total = len(watermarks)
        print(f"⚠ Marcas de agua detectadas: {total}\n")

        print("Desglose:")
        for char_type, count in sorted(type_counts.items()):
            print(f"  - {char_type}: {count}")

        # Calcular densidad
        density = (total / len(text) * 1000) if text else 0
        print(f"\nDensidad: {density:.2f} por 1000 caracteres")

        # Evaluar probabilidad
        if density > 50:
            likelihood = "Muy alta"
        elif density > 20:
            likelihood = "Alta"
        elif density > 5:
            likelihood = "Media"
        else:
            likelihood = "Baja"

        print(f"Probabilidad de marcas de agua intencionales: {likelihood}")

        return True

    except Exception as e:
        print(f"Error: {e}")
        return False

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Uso: python check_watermarks.py <archivo>")
        sys.exit(1)

    filepath = sys.argv[1]
    has_watermarks = check_file(filepath)
    sys.exit(1 if has_watermarks else 0)

Uso:

# Verificar archivo único
python check_watermarks.py documento.txt

# Verificar y capturar código de salida
python check_watermarks.py archivo.txt && echo "Limpio" || echo "Con marca de agua"

# Verificar múltiples archivos
for file in *.txt; do
  python check_watermarks.py "$file"
done

Una línea de Bash

Verificación rápida en terminal:

# Contar marcas de agua
grep -o 
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Frequently Asked Questions
Find answers to the most common questions about our AI watermark remover.
AI watermarks are invisible characters (like zero-width spaces) that AI tools like ChatGPT insert into generated text. These hidden markers help identify AI-generated content but don't affect readability.
Our tool scans your text for invisible characters commonly used as AI watermarks, such as zero-width spaces and ASCII control characters. It then highlights these markers and can remove them completely while preserving your original content.
No. All text processing happens directly in your browser. We don't store, log, or transmit your text anywhere. Your privacy is our priority.
We detect various invisible characters including zero-width spaces, zero-width joiners, soft hyphens, word joiners, and ASCII control characters that AI tools might use as watermarks.
No. The tool only removes invisible characters used as watermarks. Your visible text, formatting, and meaning remain exactly the same.
Yes, the free version currently has a 500-character limit per operation. Signed-in users get 1,500 characters. This helps ensure fast processing and optimal performance.
Yes! You can upload Word (.docx) documents directly to our tool. We'll scan and remove invisible watermark characters from all sections including main content, headers, footers, footnotes, and comments—all while preserving your document's formatting and layout. Processing happens entirely in your browser, so your documents remain private.
Yes! You can upload Apple Pages (.pages) documents directly to our tool. We support both modern and legacy Pages formats. We'll scan and remove invisible watermark characters from your entire document while preserving all formatting, styles, and layout. All processing happens locally in your browser, ensuring your documents stay completely private.
Your documents are 100% secure and never leave your device. All document processing happens entirely in your browser using JavaScript. When you upload a Word or Pages document, it's read and modified locally on your computer—we never send your files to any server. This means your sensitive documents, personal information, and private content remain completely confidential. Even we can't see what you're processing. This client-side approach ensures maximum privacy and security for your documents.
If you clean a document using our document uploader and then copy-paste the text into the text detection area, you might see watermarks detected. This is normal and doesn't mean the cleaning failed. Here's why: Document cleaning preserves all formatting (bold, italics, spacing, etc.) to keep your document looking identical. When you copy this formatted text, some harmless formatting characters (like special spaces or unicode formatting marks) come along. Our text detection tool, which is designed to be more aggressive, might flag these formatting characters as potential watermarks. The document itself is clean—these are just formatting artifacts from the copy-paste process, not actual AI watermarks. For best results, use the cleaned document directly rather than copy-pasting its content.
Zero-width characters are invisible Unicode characters that take up no visual space but exist in the text data. AI systems like ChatGPT insert these as digital watermarks to help identify AI-generated content. Common types include zero-width spaces (U+200B), zero-width joiners (U+200D), and zero-width non-joiners (U+200C). Our tool detects and removes these invisible markers.
Our AI watermark remover is completely free, processes text locally in your browser for maximum privacy, and supports ChatGPT, Claude, Gemini, and other major AI models. Unlike other tools, we never store your text, offer document cleaning for Word and Pages files, and have no character limits for signed-in users.
Yes! Simply copy text from ChatGPT, Claude, Gemini, or any AI chat and paste it directly into our tool. Our invisible character detector will instantly identify any hidden watermarks, and you can clean the text with one click. This clean paste workflow is designed to be fast and seamless.
Paste your text into our detector tool. We'll scan for over 40 types of invisible Unicode characters commonly used as AI watermarks, including zero-width spaces, zero-width joiners, and other hidden markers. Detected watermarks are highlighted so you can see exactly where they are in your text.
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#x27;\u200B\|\u200C\|\u200D\|\u00AD\|\u2060\|\uFEFF' archivo.txt | wc -l

# Mostrar si existe alguna
if grep -q 
Remove AI Watermarksfrom ChatGPT Text
The best free AI watermark remover tool. Detect and remove invisible characters like zero-width spaces from ChatGPT, Claude, and Gemini text. Our invisible character detector finds hidden AI watermarks instantly. Clean paste your text - no registration, no data stored.
Removes invisible AI watermarks
Instant detection and cleaning
Private & secure - no data stored
AI Watermark Remover
Professional AI text detection and cleaning
Clean Word Documents (.docx)
Remove AI watermarks from Word files while preserving all formatting
Drop your Word document here
or click to browse files
Only .docx files • Max 50MB
All processing happens locally in your browser. Your document never leaves your device.
Clean Apple Pages Documents (.pages)
Remove AI watermarks from Pages files while preserving all formatting
Drop your Pages document here
or click to browse files
Only .pages files • Max 50MB
All processing happens locally in your browser. Your document never leaves your device.
Fully Private
All processing happens in your browser
Preserves Formatting
Your document stays visually identical
Instant Processing
Cleaned in seconds
Before & After
Why Remove AI Watermarks?
Here's why you should remove invisible AI watermarks:
With Watermarks
Text Detection
AI detection tools flag your content
Readability
Hidden characters may cause formatting issues
Copy/Paste
Invisible markers transfer between apps
Privacy
Text contains trackable markers
After Removal
Text Detection
Pass AI detection checks confidently
Readability
Clean, properly formatted text
Copy/Paste
Text copies exactly as intended
Privacy
No hidden tracking elements
Ready for clean text?
Specialized Solutions for Every AI Model
Tailored guides and tools for ChatGPT, Gemini, Claude, and more.
ChatGPT Watermarks
Learn how ChatGPT watermarks work and how to detect or remove invisible AI traces from your text.
Explore ChatGPT Watermarks
Gemini Watermarks
Understand Gemini's watermarking techniques and learn how to analyze and clean AI-generated content.
Explore Gemini Watermarks
Claude Watermarks
Discover how Claude watermarks function and how to verify and detect hidden AI signatures in documents.
Explore Claude Watermarks
For Students
Learn how students can use AI tools responsibly while avoiding watermark detection issues in academic work.
Explore For Students
Blog
Latest Articles
Explore our latest guides on AI watermark detection, removal, and privacy.
Is AI Content Bad For SEO? What Google Actually Says (And What Nobody Tells You)
Is AI Content Bad For SEO? What Google Actually Says (And What Nobody Tells You)
Learn if AI content hurts SEO rankings. Google's official stance, hidden watermark issues, and best practices for AI-generated content in 2026.
Read more: Is AI Content Bad For SEO? Wha...
How Does an AI Detector Work? The Complete Guide
How Does an AI Detector Work? The Complete Guide
Discover how AI detectors work, including linguistic analysis (perplexity & burstiness) and watermark detection. Learn why detectors fail and how to address concerns.
Read more: How Does an AI Detector Work? ...
Why Is the AI Detector Saying My Writing Is AI? The Complete Guide
Why Is the AI Detector Saying My Writing Is AI? The Complete Guide
Discover why AI detectors flag your human-written text as AI-generated. Learn about invisible watermarks, writing patterns, and practical solutions to fix false positives.
Read more: Why Is the AI Detector Saying ...
Does ChatGPT Leave a Digital Footprint? Metadata, Watermarks & What You Need to Know (2025)
Does ChatGPT Leave a Digital Footprint? Metadata, Watermarks & What You Need to Know (2025)
Discover if ChatGPT leaves hidden watermarks, metadata, or digital footprints in your text. Learn what AI traces exist, how to detect them, and what the law says.
Read more: Does ChatGPT Leave a Digital F...
5 Best AI Watermark Removers in 2025 (Expert Tested & Compared)
5 Best AI Watermark Removers in 2025 (Expert Tested & Compared)
Compare 5 best AI text watermark removers for 2025. See which tools offer the best privacy, free tiers, and document support. Find your ideal solution.
Read more: 5 Best AI Watermark Removers i...
How to See ChatGPT Watermarks: A Complete Detection Guide
How to See ChatGPT Watermarks: A Complete Detection Guide
Learn how to detect invisible ChatGPT watermarks in AI-generated text. Discover the hidden zero-width characters and formatting markers that AI models embed in their outputs.
Read more: How to See ChatGPT Watermarks:...
View all articles
Learn More
Knowledge Center
Explore technical explanations of AI watermarking, detection methods, and removal techniques. Each article covers mechanisms, applications, and limitations.
What Are AI Watermarks? (Text Watermarks Explained)
AI watermarks are invisible markers embedded into text generated by large language models (LLMs). Their purpose is to help identify whether a piece...
Read article: What Are AI Watermarks? (...
Watermark Removal vs AI Detection: What's the Difference?
AI watermark removal and AI content detection are two separate processes that address different parts of how large language models (LLMs) generate ...
Read article: Watermark Removal vs AI D...
Token Distribution in AI Watermarking: Why It Matters for Detection
Token distribution in AI watermarking refers to the intentional manipulation of token probability patterns within LLM-generated text to embed a hid...
Read article: Token Distribution in AI ...
Why AI Detectors Fail: False Positives, False Negatives, and Model Bias
AI detectors attempt to estimate whether a piece of text was generated by a large language model (LLM). They rely on statistical patterns, token en...
Read article: Why AI Detectors Fail: Fa...
View all articles
Your Feedback Matters
Missing Something? Have Ideas for Improvement?
We're constantly improving this tool and your ideas help us make it even better. Tell us what features you'd love to see!
Request a Feature
Have an idea for a new feature? Want to suggest an improvement? We listen and implement the best ideas!
New feature ideas
Improvement suggestions
User experience feedback
General feedback
Share Now
Every idea counts - together we make this tool even better!
Help & Support
Frequently Asked Questions
Find answers to the most common questions about our AI watermark remover.
AI watermarks are invisible characters (like zero-width spaces) that AI tools like ChatGPT insert into generated text. These hidden markers help identify AI-generated content but don't affect readability.
Our tool scans your text for invisible characters commonly used as AI watermarks, such as zero-width spaces and ASCII control characters. It then highlights these markers and can remove them completely while preserving your original content.
No. All text processing happens directly in your browser. We don't store, log, or transmit your text anywhere. Your privacy is our priority.
We detect various invisible characters including zero-width spaces, zero-width joiners, soft hyphens, word joiners, and ASCII control characters that AI tools might use as watermarks.
No. The tool only removes invisible characters used as watermarks. Your visible text, formatting, and meaning remain exactly the same.
Yes, the free version currently has a 500-character limit per operation. Signed-in users get 1,500 characters. This helps ensure fast processing and optimal performance.
Yes! You can upload Word (.docx) documents directly to our tool. We'll scan and remove invisible watermark characters from all sections including main content, headers, footers, footnotes, and comments—all while preserving your document's formatting and layout. Processing happens entirely in your browser, so your documents remain private.
Yes! You can upload Apple Pages (.pages) documents directly to our tool. We support both modern and legacy Pages formats. We'll scan and remove invisible watermark characters from your entire document while preserving all formatting, styles, and layout. All processing happens locally in your browser, ensuring your documents stay completely private.
Your documents are 100% secure and never leave your device. All document processing happens entirely in your browser using JavaScript. When you upload a Word or Pages document, it's read and modified locally on your computer—we never send your files to any server. This means your sensitive documents, personal information, and private content remain completely confidential. Even we can't see what you're processing. This client-side approach ensures maximum privacy and security for your documents.
If you clean a document using our document uploader and then copy-paste the text into the text detection area, you might see watermarks detected. This is normal and doesn't mean the cleaning failed. Here's why: Document cleaning preserves all formatting (bold, italics, spacing, etc.) to keep your document looking identical. When you copy this formatted text, some harmless formatting characters (like special spaces or unicode formatting marks) come along. Our text detection tool, which is designed to be more aggressive, might flag these formatting characters as potential watermarks. The document itself is clean—these are just formatting artifacts from the copy-paste process, not actual AI watermarks. For best results, use the cleaned document directly rather than copy-pasting its content.
Zero-width characters are invisible Unicode characters that take up no visual space but exist in the text data. AI systems like ChatGPT insert these as digital watermarks to help identify AI-generated content. Common types include zero-width spaces (U+200B), zero-width joiners (U+200D), and zero-width non-joiners (U+200C). Our tool detects and removes these invisible markers.
Our AI watermark remover is completely free, processes text locally in your browser for maximum privacy, and supports ChatGPT, Claude, Gemini, and other major AI models. Unlike other tools, we never store your text, offer document cleaning for Word and Pages files, and have no character limits for signed-in users.
Yes! Simply copy text from ChatGPT, Claude, Gemini, or any AI chat and paste it directly into our tool. Our invisible character detector will instantly identify any hidden watermarks, and you can clean the text with one click. This clean paste workflow is designed to be fast and seamless.
Paste your text into our detector tool. We'll scan for over 40 types of invisible Unicode characters commonly used as AI watermarks, including zero-width spaces, zero-width joiners, and other hidden markers. Detected watermarks are highlighted so you can see exactly where they are in your text.
More Questions?
Try our tool and discover for yourself how easy it is!
#x27;\u200B\|\u200C\|\u200D' archivo.txt; then
  echo "⚠ Marcas de agua detectadas"
else
  echo "✓ Limpio"
fi

# Encontrar archivos con marcas de agua en directorio
find . -name "*.txt" -exec grep -l 
Remove AI Watermarksfrom ChatGPT Text
The best free AI watermark remover tool. Detect and remove invisible characters like zero-width spaces from ChatGPT, Claude, and Gemini text. Our invisible character detector finds hidden AI watermarks instantly. Clean paste your text - no registration, no data stored.
Removes invisible AI watermarks
Instant detection and cleaning
Private & secure - no data stored
AI Watermark Remover
Professional AI text detection and cleaning
Clean Word Documents (.docx)
Remove AI watermarks from Word files while preserving all formatting
Drop your Word document here
or click to browse files
Only .docx files • Max 50MB
All processing happens locally in your browser. Your document never leaves your device.
Clean Apple Pages Documents (.pages)
Remove AI watermarks from Pages files while preserving all formatting
Drop your Pages document here
or click to browse files
Only .pages files • Max 50MB
All processing happens locally in your browser. Your document never leaves your device.
Fully Private
All processing happens in your browser
Preserves Formatting
Your document stays visually identical
Instant Processing
Cleaned in seconds
Before & After
Why Remove AI Watermarks?
Here's why you should remove invisible AI watermarks:
With Watermarks
Text Detection
AI detection tools flag your content
Readability
Hidden characters may cause formatting issues
Copy/Paste
Invisible markers transfer between apps
Privacy
Text contains trackable markers
After Removal
Text Detection
Pass AI detection checks confidently
Readability
Clean, properly formatted text
Copy/Paste
Text copies exactly as intended
Privacy
No hidden tracking elements
Ready for clean text?
Specialized Solutions for Every AI Model
Tailored guides and tools for ChatGPT, Gemini, Claude, and more.
ChatGPT Watermarks
Learn how ChatGPT watermarks work and how to detect or remove invisible AI traces from your text.
Explore ChatGPT Watermarks
Gemini Watermarks
Understand Gemini's watermarking techniques and learn how to analyze and clean AI-generated content.
Explore Gemini Watermarks
Claude Watermarks
Discover how Claude watermarks function and how to verify and detect hidden AI signatures in documents.
Explore Claude Watermarks
For Students
Learn how students can use AI tools responsibly while avoiding watermark detection issues in academic work.
Explore For Students
Blog
Latest Articles
Explore our latest guides on AI watermark detection, removal, and privacy.
Is AI Content Bad For SEO? What Google Actually Says (And What Nobody Tells You)
Is AI Content Bad For SEO? What Google Actually Says (And What Nobody Tells You)
Learn if AI content hurts SEO rankings. Google's official stance, hidden watermark issues, and best practices for AI-generated content in 2026.
Read more: Is AI Content Bad For SEO? Wha...
How Does an AI Detector Work? The Complete Guide
How Does an AI Detector Work? The Complete Guide
Discover how AI detectors work, including linguistic analysis (perplexity & burstiness) and watermark detection. Learn why detectors fail and how to address concerns.
Read more: How Does an AI Detector Work? ...
Why Is the AI Detector Saying My Writing Is AI? The Complete Guide
Why Is the AI Detector Saying My Writing Is AI? The Complete Guide
Discover why AI detectors flag your human-written text as AI-generated. Learn about invisible watermarks, writing patterns, and practical solutions to fix false positives.
Read more: Why Is the AI Detector Saying ...
Does ChatGPT Leave a Digital Footprint? Metadata, Watermarks & What You Need to Know (2025)
Does ChatGPT Leave a Digital Footprint? Metadata, Watermarks & What You Need to Know (2025)
Discover if ChatGPT leaves hidden watermarks, metadata, or digital footprints in your text. Learn what AI traces exist, how to detect them, and what the law says.
Read more: Does ChatGPT Leave a Digital F...
5 Best AI Watermark Removers in 2025 (Expert Tested & Compared)
5 Best AI Watermark Removers in 2025 (Expert Tested & Compared)
Compare 5 best AI text watermark removers for 2025. See which tools offer the best privacy, free tiers, and document support. Find your ideal solution.
Read more: 5 Best AI Watermark Removers i...
How to See ChatGPT Watermarks: A Complete Detection Guide
How to See ChatGPT Watermarks: A Complete Detection Guide
Learn how to detect invisible ChatGPT watermarks in AI-generated text. Discover the hidden zero-width characters and formatting markers that AI models embed in their outputs.
Read more: How to See ChatGPT Watermarks:...
View all articles
Learn More
Knowledge Center
Explore technical explanations of AI watermarking, detection methods, and removal techniques. Each article covers mechanisms, applications, and limitations.
What Are AI Watermarks? (Text Watermarks Explained)
AI watermarks are invisible markers embedded into text generated by large language models (LLMs). Their purpose is to help identify whether a piece...
Read article: What Are AI Watermarks? (...
Watermark Removal vs AI Detection: What's the Difference?
AI watermark removal and AI content detection are two separate processes that address different parts of how large language models (LLMs) generate ...
Read article: Watermark Removal vs AI D...
Token Distribution in AI Watermarking: Why It Matters for Detection
Token distribution in AI watermarking refers to the intentional manipulation of token probability patterns within LLM-generated text to embed a hid...
Read article: Token Distribution in AI ...
Why AI Detectors Fail: False Positives, False Negatives, and Model Bias
AI detectors attempt to estimate whether a piece of text was generated by a large language model (LLM). They rely on statistical patterns, token en...
Read article: Why AI Detectors Fail: Fa...
View all articles
Your Feedback Matters
Missing Something? Have Ideas for Improvement?
We're constantly improving this tool and your ideas help us make it even better. Tell us what features you'd love to see!
Request a Feature
Have an idea for a new feature? Want to suggest an improvement? We listen and implement the best ideas!
New feature ideas
Improvement suggestions
User experience feedback
General feedback
Share Now
Every idea counts - together we make this tool even better!
Help & Support
Frequently Asked Questions
Find answers to the most common questions about our AI watermark remover.
AI watermarks are invisible characters (like zero-width spaces) that AI tools like ChatGPT insert into generated text. These hidden markers help identify AI-generated content but don't affect readability.
Our tool scans your text for invisible characters commonly used as AI watermarks, such as zero-width spaces and ASCII control characters. It then highlights these markers and can remove them completely while preserving your original content.
No. All text processing happens directly in your browser. We don't store, log, or transmit your text anywhere. Your privacy is our priority.
We detect various invisible characters including zero-width spaces, zero-width joiners, soft hyphens, word joiners, and ASCII control characters that AI tools might use as watermarks.
No. The tool only removes invisible characters used as watermarks. Your visible text, formatting, and meaning remain exactly the same.
Yes, the free version currently has a 500-character limit per operation. Signed-in users get 1,500 characters. This helps ensure fast processing and optimal performance.
Yes! You can upload Word (.docx) documents directly to our tool. We'll scan and remove invisible watermark characters from all sections including main content, headers, footers, footnotes, and comments—all while preserving your document's formatting and layout. Processing happens entirely in your browser, so your documents remain private.
Yes! You can upload Apple Pages (.pages) documents directly to our tool. We support both modern and legacy Pages formats. We'll scan and remove invisible watermark characters from your entire document while preserving all formatting, styles, and layout. All processing happens locally in your browser, ensuring your documents stay completely private.
Your documents are 100% secure and never leave your device. All document processing happens entirely in your browser using JavaScript. When you upload a Word or Pages document, it's read and modified locally on your computer—we never send your files to any server. This means your sensitive documents, personal information, and private content remain completely confidential. Even we can't see what you're processing. This client-side approach ensures maximum privacy and security for your documents.
If you clean a document using our document uploader and then copy-paste the text into the text detection area, you might see watermarks detected. This is normal and doesn't mean the cleaning failed. Here's why: Document cleaning preserves all formatting (bold, italics, spacing, etc.) to keep your document looking identical. When you copy this formatted text, some harmless formatting characters (like special spaces or unicode formatting marks) come along. Our text detection tool, which is designed to be more aggressive, might flag these formatting characters as potential watermarks. The document itself is clean—these are just formatting artifacts from the copy-paste process, not actual AI watermarks. For best results, use the cleaned document directly rather than copy-pasting its content.
Zero-width characters are invisible Unicode characters that take up no visual space but exist in the text data. AI systems like ChatGPT insert these as digital watermarks to help identify AI-generated content. Common types include zero-width spaces (U+200B), zero-width joiners (U+200D), and zero-width non-joiners (U+200C). Our tool detects and removes these invisible markers.
Our AI watermark remover is completely free, processes text locally in your browser for maximum privacy, and supports ChatGPT, Claude, Gemini, and other major AI models. Unlike other tools, we never store your text, offer document cleaning for Word and Pages files, and have no character limits for signed-in users.
Yes! Simply copy text from ChatGPT, Claude, Gemini, or any AI chat and paste it directly into our tool. Our invisible character detector will instantly identify any hidden watermarks, and you can clean the text with one click. This clean paste workflow is designed to be fast and seamless.
Paste your text into our detector tool. We'll scan for over 40 types of invisible Unicode characters commonly used as AI watermarks, including zero-width spaces, zero-width joiners, and other hidden markers. Detected watermarks are highlighted so you can see exactly where they are in your text.
More Questions?
Try our tool and discover for yourself how easy it is!
#x27;\u200B\|\u200C\|\u200D' {} \;

Script de Node.js

#!/usr/bin/env node

const fs = require('fs');

const PATTERN = /[\u200B-\u200D\uFEFF\u00AD\u2060]/g;

function checkFile(filepath) {
  try {
    const text = fs.readFileSync(filepath, 'utf-8');
    const matches = text.match(PATTERN);
    const count = matches ? matches.length : 0;

    console.log(`\n${'='.repeat(60)}`);
    console.log(`Archivo: ${filepath}`);
    console.log('='.repeat(60));

    if (count === 0) {
      console.log('✓ No se detectaron marcas de agua');
      return false;
    }

    const density = (count / text.length * 1000).toFixed(2);

    console.log(`⚠ Marcas de agua detectadas: ${count}`);
    console.log(`Densidad: ${density} por 1000 caracteres`);

    return true;
  } catch (error) {
    console.error(`Error: ${error.message}`);
    return false;
  }
}

// Ejecutar
const filepath = process.argv[2];
if (!filepath) {
  console.log('Uso: node check_watermarks.js <archivo>');
  process.exit(1);
}

const hasWatermarks = checkFile(filepath);
process.exit(hasWatermarks ? 1 : 0);

Método 6: Inspección con editor hexadecimal

El método más técnico—ver bytes sin procesar.

Usando HxD (Windows) o Hex Fiend (Mac)

Paso 1: Abrir archivo en editor hexadecimal

Paso 2: Buscar patrones de bytes

Espacio de ancho cero: E2 80 8B No separador de ancho cero: E2 80 8C Separador de ancho cero: E2 80 8D

Paso 3: Contar ocurrencias

Los editores hexadecimales muestran frecuencia de cada patrón de bytes

Paso 4: Evaluar

  • Múltiples ocurrencias = probablemente marcas de agua
  • Espaciado regular = marcas de agua intencionales
  • Aleatorio = posiblemente accidental

Método 7: Verificación automatizada en CI/CD

Integrar detección de marcas de agua en tu flujo de trabajo de desarrollo.

GitHub Actions

name: Verificar marcas de agua

on: [push, pull_request]

jobs:
  watermark-check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Verificar archivos para marcas de agua
        run: |
          #!/bin/bash
          found_watermarks=false

          for file in $(find . -name "*.txt" -o -name "*.md" -o -name "*.py"); do
            if grep -q 
Remove AI Watermarksfrom ChatGPT Text
The best free AI watermark remover tool. Detect and remove invisible characters like zero-width spaces from ChatGPT, Claude, and Gemini text. Our invisible character detector finds hidden AI watermarks instantly. Clean paste your text - no registration, no data stored.
Removes invisible AI watermarks
Instant detection and cleaning
Private & secure - no data stored
AI Watermark Remover
Professional AI text detection and cleaning
Clean Word Documents (.docx)
Remove AI watermarks from Word files while preserving all formatting
Drop your Word document here
or click to browse files
Only .docx files • Max 50MB
All processing happens locally in your browser. Your document never leaves your device.
Clean Apple Pages Documents (.pages)
Remove AI watermarks from Pages files while preserving all formatting
Drop your Pages document here
or click to browse files
Only .pages files • Max 50MB
All processing happens locally in your browser. Your document never leaves your device.
Fully Private
All processing happens in your browser
Preserves Formatting
Your document stays visually identical
Instant Processing
Cleaned in seconds
Before & After
Why Remove AI Watermarks?
Here's why you should remove invisible AI watermarks:
With Watermarks
Text Detection
AI detection tools flag your content
Readability
Hidden characters may cause formatting issues
Copy/Paste
Invisible markers transfer between apps
Privacy
Text contains trackable markers
After Removal
Text Detection
Pass AI detection checks confidently
Readability
Clean, properly formatted text
Copy/Paste
Text copies exactly as intended
Privacy
No hidden tracking elements
Ready for clean text?
Specialized Solutions for Every AI Model
Tailored guides and tools for ChatGPT, Gemini, Claude, and more.
ChatGPT Watermarks
Learn how ChatGPT watermarks work and how to detect or remove invisible AI traces from your text.
Explore ChatGPT Watermarks
Gemini Watermarks
Understand Gemini's watermarking techniques and learn how to analyze and clean AI-generated content.
Explore Gemini Watermarks
Claude Watermarks
Discover how Claude watermarks function and how to verify and detect hidden AI signatures in documents.
Explore Claude Watermarks
For Students
Learn how students can use AI tools responsibly while avoiding watermark detection issues in academic work.
Explore For Students
Blog
Latest Articles
Explore our latest guides on AI watermark detection, removal, and privacy.
Is AI Content Bad For SEO? What Google Actually Says (And What Nobody Tells You)
Is AI Content Bad For SEO? What Google Actually Says (And What Nobody Tells You)
Learn if AI content hurts SEO rankings. Google's official stance, hidden watermark issues, and best practices for AI-generated content in 2026.
Read more: Is AI Content Bad For SEO? Wha...
How Does an AI Detector Work? The Complete Guide
How Does an AI Detector Work? The Complete Guide
Discover how AI detectors work, including linguistic analysis (perplexity & burstiness) and watermark detection. Learn why detectors fail and how to address concerns.
Read more: How Does an AI Detector Work? ...
Why Is the AI Detector Saying My Writing Is AI? The Complete Guide
Why Is the AI Detector Saying My Writing Is AI? The Complete Guide
Discover why AI detectors flag your human-written text as AI-generated. Learn about invisible watermarks, writing patterns, and practical solutions to fix false positives.
Read more: Why Is the AI Detector Saying ...
Does ChatGPT Leave a Digital Footprint? Metadata, Watermarks & What You Need to Know (2025)
Does ChatGPT Leave a Digital Footprint? Metadata, Watermarks & What You Need to Know (2025)
Discover if ChatGPT leaves hidden watermarks, metadata, or digital footprints in your text. Learn what AI traces exist, how to detect them, and what the law says.
Read more: Does ChatGPT Leave a Digital F...
5 Best AI Watermark Removers in 2025 (Expert Tested & Compared)
5 Best AI Watermark Removers in 2025 (Expert Tested & Compared)
Compare 5 best AI text watermark removers for 2025. See which tools offer the best privacy, free tiers, and document support. Find your ideal solution.
Read more: 5 Best AI Watermark Removers i...
How to See ChatGPT Watermarks: A Complete Detection Guide
How to See ChatGPT Watermarks: A Complete Detection Guide
Learn how to detect invisible ChatGPT watermarks in AI-generated text. Discover the hidden zero-width characters and formatting markers that AI models embed in their outputs.
Read more: How to See ChatGPT Watermarks:...
View all articles
Learn More
Knowledge Center
Explore technical explanations of AI watermarking, detection methods, and removal techniques. Each article covers mechanisms, applications, and limitations.
What Are AI Watermarks? (Text Watermarks Explained)
AI watermarks are invisible markers embedded into text generated by large language models (LLMs). Their purpose is to help identify whether a piece...
Read article: What Are AI Watermarks? (...
Watermark Removal vs AI Detection: What's the Difference?
AI watermark removal and AI content detection are two separate processes that address different parts of how large language models (LLMs) generate ...
Read article: Watermark Removal vs AI D...
Token Distribution in AI Watermarking: Why It Matters for Detection
Token distribution in AI watermarking refers to the intentional manipulation of token probability patterns within LLM-generated text to embed a hid...
Read article: Token Distribution in AI ...
Why AI Detectors Fail: False Positives, False Negatives, and Model Bias
AI detectors attempt to estimate whether a piece of text was generated by a large language model (LLM). They rely on statistical patterns, token en...
Read article: Why AI Detectors Fail: Fa...
View all articles
Your Feedback Matters
Missing Something? Have Ideas for Improvement?
We're constantly improving this tool and your ideas help us make it even better. Tell us what features you'd love to see!
Request a Feature
Have an idea for a new feature? Want to suggest an improvement? We listen and implement the best ideas!
New feature ideas
Improvement suggestions
User experience feedback
General feedback
Share Now
Every idea counts - together we make this tool even better!
Help & Support
Frequently Asked Questions
Find answers to the most common questions about our AI watermark remover.
AI watermarks are invisible characters (like zero-width spaces) that AI tools like ChatGPT insert into generated text. These hidden markers help identify AI-generated content but don't affect readability.
Our tool scans your text for invisible characters commonly used as AI watermarks, such as zero-width spaces and ASCII control characters. It then highlights these markers and can remove them completely while preserving your original content.
No. All text processing happens directly in your browser. We don't store, log, or transmit your text anywhere. Your privacy is our priority.
We detect various invisible characters including zero-width spaces, zero-width joiners, soft hyphens, word joiners, and ASCII control characters that AI tools might use as watermarks.
No. The tool only removes invisible characters used as watermarks. Your visible text, formatting, and meaning remain exactly the same.
Yes, the free version currently has a 500-character limit per operation. Signed-in users get 1,500 characters. This helps ensure fast processing and optimal performance.
Yes! You can upload Word (.docx) documents directly to our tool. We'll scan and remove invisible watermark characters from all sections including main content, headers, footers, footnotes, and comments—all while preserving your document's formatting and layout. Processing happens entirely in your browser, so your documents remain private.
Yes! You can upload Apple Pages (.pages) documents directly to our tool. We support both modern and legacy Pages formats. We'll scan and remove invisible watermark characters from your entire document while preserving all formatting, styles, and layout. All processing happens locally in your browser, ensuring your documents stay completely private.
Your documents are 100% secure and never leave your device. All document processing happens entirely in your browser using JavaScript. When you upload a Word or Pages document, it's read and modified locally on your computer—we never send your files to any server. This means your sensitive documents, personal information, and private content remain completely confidential. Even we can't see what you're processing. This client-side approach ensures maximum privacy and security for your documents.
If you clean a document using our document uploader and then copy-paste the text into the text detection area, you might see watermarks detected. This is normal and doesn't mean the cleaning failed. Here's why: Document cleaning preserves all formatting (bold, italics, spacing, etc.) to keep your document looking identical. When you copy this formatted text, some harmless formatting characters (like special spaces or unicode formatting marks) come along. Our text detection tool, which is designed to be more aggressive, might flag these formatting characters as potential watermarks. The document itself is clean—these are just formatting artifacts from the copy-paste process, not actual AI watermarks. For best results, use the cleaned document directly rather than copy-pasting its content.
Zero-width characters are invisible Unicode characters that take up no visual space but exist in the text data. AI systems like ChatGPT insert these as digital watermarks to help identify AI-generated content. Common types include zero-width spaces (U+200B), zero-width joiners (U+200D), and zero-width non-joiners (U+200C). Our tool detects and removes these invisible markers.
Our AI watermark remover is completely free, processes text locally in your browser for maximum privacy, and supports ChatGPT, Claude, Gemini, and other major AI models. Unlike other tools, we never store your text, offer document cleaning for Word and Pages files, and have no character limits for signed-in users.
Yes! Simply copy text from ChatGPT, Claude, Gemini, or any AI chat and paste it directly into our tool. Our invisible character detector will instantly identify any hidden watermarks, and you can clean the text with one click. This clean paste workflow is designed to be fast and seamless.
Paste your text into our detector tool. We'll scan for over 40 types of invisible Unicode characters commonly used as AI watermarks, including zero-width spaces, zero-width joiners, and other hidden markers. Detected watermarks are highlighted so you can see exactly where they are in your text.
More Questions?
Try our tool and discover for yourself how easy it is!
#x27;\u200B\|\u200C\|\u200D' "$file"; then
              echo "⚠ Marcas de agua en: $file"
              found_watermarks=true
            fi
          done

          if [ "$found_watermarks" = true ]; then
            echo "❌ ¡Marcas de agua detectadas en el repositorio!"
            exit 1
          else
            echo "✓ No se detectaron marcas de agua"
          fi

Hook de pre-commit

#!/bin/bash
# .git/hooks/pre-commit

echo "Verificando marcas de agua..."

FILES=$(git diff --cached --name-only --diff-filter=ACM)

for FILE in $FILES; do
  if [ -f "$FILE" ]; then
    if grep -q 
Remove AI Watermarksfrom ChatGPT Text
The best free AI watermark remover tool. Detect and remove invisible characters like zero-width spaces from ChatGPT, Claude, and Gemini text. Our invisible character detector finds hidden AI watermarks instantly. Clean paste your text - no registration, no data stored.
Removes invisible AI watermarks
Instant detection and cleaning
Private & secure - no data stored
AI Watermark Remover
Professional AI text detection and cleaning
Clean Word Documents (.docx)
Remove AI watermarks from Word files while preserving all formatting
Drop your Word document here
or click to browse files
Only .docx files • Max 50MB
All processing happens locally in your browser. Your document never leaves your device.
Clean Apple Pages Documents (.pages)
Remove AI watermarks from Pages files while preserving all formatting
Drop your Pages document here
or click to browse files
Only .pages files • Max 50MB
All processing happens locally in your browser. Your document never leaves your device.
Fully Private
All processing happens in your browser
Preserves Formatting
Your document stays visually identical
Instant Processing
Cleaned in seconds
Before & After
Why Remove AI Watermarks?
Here's why you should remove invisible AI watermarks:
With Watermarks
Text Detection
AI detection tools flag your content
Readability
Hidden characters may cause formatting issues
Copy/Paste
Invisible markers transfer between apps
Privacy
Text contains trackable markers
After Removal
Text Detection
Pass AI detection checks confidently
Readability
Clean, properly formatted text
Copy/Paste
Text copies exactly as intended
Privacy
No hidden tracking elements
Ready for clean text?
Specialized Solutions for Every AI Model
Tailored guides and tools for ChatGPT, Gemini, Claude, and more.
ChatGPT Watermarks
Learn how ChatGPT watermarks work and how to detect or remove invisible AI traces from your text.
Explore ChatGPT Watermarks
Gemini Watermarks
Understand Gemini's watermarking techniques and learn how to analyze and clean AI-generated content.
Explore Gemini Watermarks
Claude Watermarks
Discover how Claude watermarks function and how to verify and detect hidden AI signatures in documents.
Explore Claude Watermarks
For Students
Learn how students can use AI tools responsibly while avoiding watermark detection issues in academic work.
Explore For Students
Blog
Latest Articles
Explore our latest guides on AI watermark detection, removal, and privacy.
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Learn More
Knowledge Center
Explore technical explanations of AI watermarking, detection methods, and removal techniques. Each article covers mechanisms, applications, and limitations.
What Are AI Watermarks? (Text Watermarks Explained)
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Your Feedback Matters
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Every idea counts - together we make this tool even better!
Help & Support
Frequently Asked Questions
Find answers to the most common questions about our AI watermark remover.
AI watermarks are invisible characters (like zero-width spaces) that AI tools like ChatGPT insert into generated text. These hidden markers help identify AI-generated content but don't affect readability.
Our tool scans your text for invisible characters commonly used as AI watermarks, such as zero-width spaces and ASCII control characters. It then highlights these markers and can remove them completely while preserving your original content.
No. All text processing happens directly in your browser. We don't store, log, or transmit your text anywhere. Your privacy is our priority.
We detect various invisible characters including zero-width spaces, zero-width joiners, soft hyphens, word joiners, and ASCII control characters that AI tools might use as watermarks.
No. The tool only removes invisible characters used as watermarks. Your visible text, formatting, and meaning remain exactly the same.
Yes, the free version currently has a 500-character limit per operation. Signed-in users get 1,500 characters. This helps ensure fast processing and optimal performance.
Yes! You can upload Word (.docx) documents directly to our tool. We'll scan and remove invisible watermark characters from all sections including main content, headers, footers, footnotes, and comments—all while preserving your document's formatting and layout. Processing happens entirely in your browser, so your documents remain private.
Yes! You can upload Apple Pages (.pages) documents directly to our tool. We support both modern and legacy Pages formats. We'll scan and remove invisible watermark characters from your entire document while preserving all formatting, styles, and layout. All processing happens locally in your browser, ensuring your documents stay completely private.
Your documents are 100% secure and never leave your device. All document processing happens entirely in your browser using JavaScript. When you upload a Word or Pages document, it's read and modified locally on your computer—we never send your files to any server. This means your sensitive documents, personal information, and private content remain completely confidential. Even we can't see what you're processing. This client-side approach ensures maximum privacy and security for your documents.
If you clean a document using our document uploader and then copy-paste the text into the text detection area, you might see watermarks detected. This is normal and doesn't mean the cleaning failed. Here's why: Document cleaning preserves all formatting (bold, italics, spacing, etc.) to keep your document looking identical. When you copy this formatted text, some harmless formatting characters (like special spaces or unicode formatting marks) come along. Our text detection tool, which is designed to be more aggressive, might flag these formatting characters as potential watermarks. The document itself is clean—these are just formatting artifacts from the copy-paste process, not actual AI watermarks. For best results, use the cleaned document directly rather than copy-pasting its content.
Zero-width characters are invisible Unicode characters that take up no visual space but exist in the text data. AI systems like ChatGPT insert these as digital watermarks to help identify AI-generated content. Common types include zero-width spaces (U+200B), zero-width joiners (U+200D), and zero-width non-joiners (U+200C). Our tool detects and removes these invisible markers.
Our AI watermark remover is completely free, processes text locally in your browser for maximum privacy, and supports ChatGPT, Claude, Gemini, and other major AI models. Unlike other tools, we never store your text, offer document cleaning for Word and Pages files, and have no character limits for signed-in users.
Yes! Simply copy text from ChatGPT, Claude, Gemini, or any AI chat and paste it directly into our tool. Our invisible character detector will instantly identify any hidden watermarks, and you can clean the text with one click. This clean paste workflow is designed to be fast and seamless.
Paste your text into our detector tool. We'll scan for over 40 types of invisible Unicode characters commonly used as AI watermarks, including zero-width spaces, zero-width joiners, and other hidden markers. Detected watermarks are highlighted so you can see exactly where they are in your text.
More Questions?
Try our tool and discover for yourself how easy it is!
#x27;\u200B\|\u200C\|\u200D' "$FILE"; then
      echo "⚠ Marcas de agua detectadas en: $FILE"
      echo "Ejecuta: python clean_watermarks.py \"$FILE\""
      exit 1
    fi
  fi
done

echo "✓ No se detectaron marcas de agua"
exit 0

Entender resultados de verificación

Qué significan diferentes resultados

Resultado: "0 marcas de agua detectadas"

  • El texto está limpio
  • Seguro para usar tal cual
  • No hay caracteres invisibles presentes

Resultado: "1-5 marcas de agua detectadas, densidad baja"

  • Posiblemente accidental
  • Puede ser uso legítimo de Unicode (texto RTL, etc.)
  • Verifica contexto antes de concluir generación por IA

Resultado: "10-50 marcas de agua detectadas, densidad media"

  • Probablemente marcas de agua intencionales
  • Alta probabilidad de generación por IA
  • Considera eliminación si causa problemas

Resultado: "50+ marcas de agua detectadas, densidad alta"

  • Definitivamente marcas de agua intencionales
  • Casi con certeza generado por IA
  • Eliminación fuertemente recomendada

Análisis de patrones

Patrón de espaciado regular:

Palabra[ZWSP]palabra[ZWSP]palabra[ZWSP]palabra

= Marcas de agua sistemáticas de IA

Distribución aleatoria:

Palabra[ZWSP]palabra[ZWNJ]varias[ZWJ]palabras[ZWSP]después

= Marcas de agua sofisticadas o accidental

Agrupado:

Texto normal aquí[ZWSP][ZWNJ][ZWJ]más texto normal

= Artefacto de copiar y pegar o problema de codificación

Solución de problemas de detección

"No se encontraron marcas de agua" pero el texto parece sospechoso

Razones posibles:

  1. Marcas de agua estadísticas (no basadas en caracteres)
  2. Marcas de agua ya eliminadas
  3. Modelo de IA diferente (no marca con agua)
  4. Escrito por humano con estilo similar a IA

Próximos pasos:

  • Usa detectores de contenido de IA (GPTZero, Originality.ai)
  • Analiza patrones de escritura manualmente
  • Verifica múltiples secciones

La herramienta de detección da error

Problemas comunes:

  • Codificación de archivo no UTF-8
  • Archivo corrupto
  • Formato no compatible
  • Archivo demasiado grande

Soluciones:

# Convertir a UTF-8
iconv -f ISO-8859-1 -t UTF-8 entrada.txt > salida.txt

# Verificar codificación
file -i nombrearchivo.txt

# Reducir tamaño de archivo
head -n 1000 archivo_grande.txt > muestra.txt

Diferentes métodos dan resultados diferentes

Por qué:

  • Diferentes caracteres escaneados
  • Diferentes umbrales de sensibilidad
  • Algunos métodos detectan patrones estadísticos
  • Algunos solo detectan marcas de agua de caracteres

Resolución: Usa el método más completo (verificador en línea) como autoritativo

Mejores prácticas para verificación regular

Para educadores

Flujo de trabajo:

1. Recibir envío de estudiante
2. Ejecutar verificación rápida usando [herramienta en línea](/)
3. Si se encuentran marcas de agua:
   - Revisar el contenido
   - Verificar si el uso de IA está divulgado
   - Evaluar lo apropiado
4. Si es sospechoso:
   - Usar detectores de IA adicionales
   - Tener conversación con estudiante

Para desarrolladores

Flujo de trabajo Git:

# Agregar hook de pre-commit
cp check_watermarks.sh .git/hooks/pre-commit
chmod +x .git/hooks/pre-commit

# Verificar antes de pull requests
python check_watermarks.py $(git diff --name-only main...HEAD)

Para gestores de contenido

Lista de verificación de publicación:

☐ Ejecutar verificación de marcas de agua en todo el contenido
☐ Eliminar si se encuentra (a menos que se requiera divulgación)
☐ Verificar formato intacto después de eliminación
☐ Revisión QA final
☐ Publicar

Para organizaciones

Marco de política:

1. Establecer política de uso de IA
2. Requerir verificación de marcas de agua para:
   - Contenido de cara al cliente
   - Materiales publicados
   - Documentos legales
3. Capacitar al personal en métodos de verificación
4. Implementar verificación automatizada donde sea posible
5. Auditorías regulares

Conclusión

Verificar marcas de agua de ChatGPT no tiene que ser complicado. Ya sea que uses el verificador en línea instantáneo, scripts de línea de comandos o métodos de editor de texto, la clave es tener un proceso confiable en el que puedas confiar.

Recomendaciones rápidas:

  • Más rápido: Verificador en línea (5-10 segundos)
  • Más completo: Herramientas de desarrollo del navegador con mapeo de posición
  • Automatización: Script de Python o hooks de pre-commit
  • No técnico: Visibilidad en editor de texto + prueba de conteo de caracteres

Recuerda: detectar marcas de agua es el primer paso. Entender qué hacer con esa información—respetar la integridad académica, solucionar problemas técnicos, mantener privacidad—es igualmente importante.

Verifica tu texto ahora - Herramienta gratuita

¿Listo para verificar marcas de agua de ChatGPT?

👉 Verificar marcas de agua - Gratis e instantáneo

Características:

  • ⚡ Resultados en 5-10 segundos
  • 🔍 Detecta todos los tipos de marcas de agua
  • 📊 Análisis detallado con visualización
  • 📄 Compatible con texto y documentos
  • 🔒 100% privado (basado en navegador)
  • ✅ Eliminación con un clic si se encuentra
  • 🆓 Verificaciones gratuitas ilimitadas

Artículos relacionados:

¿Preguntas? Visita nuestras Preguntas frecuentes o verifica tu texto ahora.

Related Knowledge Articles

¿Qué Son las Marcas de Agua de IA? (Explicación de Marcas de Agua de Texto)

Las marcas de agua de IA son marcadores invisibles integrados en el texto generado por modelos de lenguaje de gran tamaño (LLM). Su propósito es ayudar a identificar si un fragmento de texto fue producido por un sistema de IA en lugar de ser escrito por un humano.

Learn more: ¿Qué Son las Marcas ...

¿Listo para Eliminar Marcas de Agua de IA?

Prueba nuestra herramienta gratuita de eliminación de marcas de agua de IA. Detecta y limpia caracteres invisibles de tu texto y documentos en segundos.

Probar Removedor de Marcas de Agua GPT

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