Clean AI text.
Paste it anywhere.
Remove hidden characters, invisible watermarks, markdown clutter and chatbot phrases from AI‑generated text — right in your browser.
Cleaned text
Everything AI leaves behind.
Gone.
Free AI Cleaner scrubs the technical fingerprints that come with AI‑generated text, so it pastes cleanly into any document, email or CMS.
Invisible characters
Zero‑width spaces, joiners, byte‑order marks, bidi controls, Unicode tag and variation characters that can hide inside text.
Look‑alike letters
Cyrillic and Greek letters that look identical to English ones — like о for o — are swapped back to real Latin letters.
Markdown clutter
Stray **, ##, backticks and tables become clean plain text. Tables turn into tab‑separated rows that paste into spreadsheets.
Citations & tracking tags
Removes [1], 【source】, oaicite markers and AI tags like ?utm_source=chatgpt.com from links.
Chatbot phrases
“Certainly!”, “Here’s a polished version:”, “I hope this helps!”, “As an AI language model…” — the filler that gives it away.
Smart punctuation
Em dashes, curly quotes, ellipses and odd spaces are converted to the plain characters people actually type.
Three steps. Seconds.
No account, no upload, no waiting.
Paste
Drop in text from any AI tool.
Review
See exactly what was removed in the Changes tab.
Copy
Copy the clean text and paste it anywhere.
Your text never leaves your device.
Cleaning happens entirely in your browser. Your text is never uploaded, stored or logged — it even works offline once the page has loaded.
Questions? Answers.
What does Free AI Cleaner remove?
Invisible Unicode characters (zero‑width spaces, joiners, byte‑order marks, bidirectional controls, tag and variation characters), unusual spaces, look‑alike Cyrillic and Greek letters, markdown symbols, citation markers such as [1] or 【source】, AI tracking tags like utm_source=chatgpt.com, and chatbot filler such as “Certainly!” or “I hope this helps.” Each one can be switched on or off.
Is my text uploaded or stored?
No. All cleaning runs in your browser with JavaScript. Your text is never sent to a server, saved, or logged.
What are hidden AI watermark characters?
Unicode characters that take up no visible space, such as U+200B (zero‑width space) or U+202F (narrow no‑break space). They can come from AI tools, copy and paste, or editors. You can’t see them, but software can — and they can break formatting, search and word counts. Open the Changes tab to see each one we remove.
Will cleaning make my text undetectable by AI detectors?
No tool can honestly promise that. Cleaning removes technical fingerprints like hidden characters, formatting and chatbot phrases. AI detectors also look at writing style, so the Review tab highlights overused words you may want to rewrite in your own voice.
Does it change my wording?
Only where you allow it. Chatbot phrases like “Let me know if you have any questions” are removed when that option is on. Overused words such as “delve” are only highlighted, never changed.
Is Free AI Cleaner really free?
Yes. There’s no sign‑up, no word limit and no paid tier.
Which AI tools does it work with?
Any text‑based AI tool, including ChatGPT, Claude, Gemini, Copilot, Perplexity, DeepSeek and Grok.
Disclaimer
Free AI Cleaner is a simple, free tool. Use it however you like — on these terms.
Nothing is stored
All cleaning happens locally in your web browser. The text you paste is never uploaded to a server, stored, logged or shared, and it’s gone when you close or reload the page. The only things saved are your theme and cleaning options, kept in your own browser’s local storage.
Hosting & analytics
Like any website, our host and Cloudflare process basic request details, such as IP address and browser type, to deliver and protect the site. We use Cloudflare Web Analytics to see anonymous, aggregate traffic stats: page views, referring sites, country, browser, device type and page speed. It uses no cookies or fingerprinting, and none of it ever includes the text you clean. There are no accounts or ads.
No warranty
Free AI Cleaner is provided “as is” and “as available”, without warranties of any kind, express or implied, including accuracy, reliability, merchantability, fitness for a particular purpose and non‑infringement. Automated cleaning can miss things or change something you meant to keep, so always review the result before you use it.
No guarantees
Cleaning removes hidden characters, formatting and common chatbot phrases. It does not guarantee that text will or won’t be identified as AI‑generated by any detector, person or platform, and it doesn’t change who wrote the text.
Your responsibility
You are solely responsible for how you use this tool and its output, including following the rules of your school, employer, publisher or any platform where you use the text, and any laws that apply to you.
No liability
To the fullest extent permitted by law, the operators of Free AI Cleaner are not liable for any direct, indirect, incidental, special, consequential or other damages or losses of any kind arising from your use of, or inability to use, this site or its output. By using the site you accept this disclaimer. If you don’t agree, please don’t use it. It may be updated at any time.