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AI Text Sanitizer – Free Online Tool | PasteReady
Free · Unlimited · No signup

AI Text Sanitizer — Clean Any Text
Instantly

Remove invisible characters, AI watermarks, zero-width spaces, and hidden formatting from any AI-generated text. Real-time, in your browser, with no unnecessary data storage.

No data stored
Unlimited use
Instant results
No account needed
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Input
Paste your AI-generated text
0 chars · 0 words
Cleaned Output
Real-time result
Cleaned output will appear here as you type or paste...
0 chars · 0 words
Read time
Speak time
Sentences
Grade level
0
Issues fixed
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What it does

The complete AI text clean-up toolkit

AI tools like ChatGPT, Claude, and Gemini frequently embed invisible characters — zero-width spaces, soft hyphens, byte-order marks, and Unicode watermarks — in their output. These characters are invisible to the human eye but cause problems in SEO indexing, CMS editors, and copy-paste workflows. PasteReady's AI Text Sanitizer detects and removes them in real time, entirely in your browser.

Features

Everything you need, nothing you don't

Real-time processing

Text is cleaned instantly as you type or paste. No button press, no delay, no server call.

🎯

5 cleaning modes

Standard, SEO, Blog, Developer, and Social modes — each applies context-aware cleanup rules.

🔍

Diff view

See exactly what changed — every removed character, normalized space, and stripped artifact shown line-by-line.

📊

Live scoring

Cleanliness and SEO readiness scores update in real time so you know when the text is truly clean.

Find & replace

Search and replace within the cleaned output before copying. No need to paste elsewhere.

Undo history

Step back through your edits without starting over.

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Reading stats

Estimated read time, speak time, sentence count, and grade-level estimate for the cleaned text.

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Private by default

Everything runs in your browser. No account needed and no unnecessary data storage.

Who it's for

Built for every AI text workflow

📈

SEO teams

Clean AI drafts of invisible watermarks that can affect indexing and content quality signals.

✍️

Blog writers

Remove copy-paste mess, normalize spacing, and clean up AI output before publishing.

⌨️

Developers

Sanitize AI-generated docs, prompts, and code comments before committing or shipping.

📱

Social media

Tighten AI-generated captions and strip hidden characters before posting to any platform.

FAQ

Common questions

Yes — AI tools including ChatGPT, Claude, and Gemini frequently embed zero-width spaces, soft hyphens, byte-order marks (BOM), and other Unicode watermark characters in generated text. These are invisible to the human eye but detectable by text parsers, CMS systems, and search engines. PasteReady removes all of them.
Cleaning text removes formatting artifacts that can harm content quality signals. While cleaning alone will not guarantee rankings, it removes technical issues that can silently hurt publishable content.
Zero-width spaces are invisible Unicode characters that take up no visual space but still exist in the character stream. They can break text processing, keyword matching, and copy-paste workflows.
No. This tool runs entirely in your browser using client-side JavaScript. Your text is not sent anywhere or stored by the tool.
Each mode applies slightly different rules. Standard is balanced for general use. SEO mode is stricter for publishing. Blog mode preserves paragraph flow. Developer mode keeps text more literal. Social mode compacts line breaks for short-form copy.
Yes. Enable the HTML and Markdown cleanup option and the tool will remove raw tags, markup residue, and Markdown artifacts.
The cleanliness score measures how many issues were found relative to the size of your input. A higher score means the text has fewer hidden characters and formatting problems.
Yes. This tool is free to use and designed for unlimited everyday text cleanup.
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Ready to clean your text?

Paste your AI-generated text above — free, instant, and no account ever required.