Detect AI Watermarks in Seconds
Online text analysis tool — paste text, scan hidden Unicode characters, and clean AI watermarks instantly. Free. Private. No credit card.
Free ai watermark detector — 26+ invisible character types scanned locally in your browser.
AI Watermark Detector
Paste text from ChatGPT, Claude, Gemini or any source. We scan 30+ invisible Unicode characters and clean your text instantly — no signup required.
Your text is only sent for AI review if suspicious patterns are found. We never store your input.
Built for Every Text Workflow
An invisible watermark detector for anyone who ships text to readers, screens, or systems.
Publishing
Strip hidden characters before publishing to avoid CMS errors and broken layouts.
Education
Check essays for academic integrity and invisible AI watermarks before submission.
Development
Debug API responses, JSON payloads, and database inserts broken by invisible characters.
Content Quality
Clean text copied from AI tools before it reaches screen readers and accessibility tools.
How to Detect AI Watermarks
Check for AI watermarks and clean your text in four simple steps:
Copy Text
Copy text from ChatGPT, Claude, Gemini, or any other source you suspect may carry a watermark.
Paste It
Paste into the input box above. You can also upload a .txt file up to 20,000 characters.
Analyze
Click Analyze. Our scanner checks 30+ invisible Unicode characters in milliseconds.
Review & Copy
Inspect detected characters, read the optional AI review, and copy clean text to clipboard.
Frequently Asked Questions
Everything you need to know about detecting AI watermarks and hidden Unicode characters.
Start Detecting AI Watermarks Now
Free. Private. No credit card. Scan text and clean AI watermarks in seconds.