All Tools
Every GPT Cleanup tool in one place. All of them are free, instant, and 100% private — no text is ever sent to a server.
Clean & Remove
ChatGPT Text Cleaner
Most PopularRemove all hidden characters, zero-width spaces, and invisible formatting from ChatGPT text in one click.
AI Text Cleaner
NewClean text copied from any AI chat: Markdown symbols, hidden characters, smart quotes and em dashes removed; copy plain or formatted.
ChatGPT Space Remover
Remove the extra spaces ChatGPT leaves behind: double spaces, non-breaking spaces, zero-width characters and optional blank lines.
ChatGPT Watermark Remover
Remove hidden ChatGPT watermarks — HTML data attributes and invisible characters that ChatGPT's interface embeds in copied text.
ChatGPT Formatting Remover
Turn ChatGPT's Markdown into clean plain text, or copy it as real headings, bold and lists for Google Docs and Word.
Em Dash Remover
NewReplace every em dash in ChatGPT, Claude or Gemini text with a comma, a hyphen with spaces, a plain hyphen, or nothing.
Detect & Analyze
AI Detector
10 Detection CategoriesScan any text for hidden AI fingerprints with a 0-100 confidence score. Finds proof, not probability.
ChatGPT Watermark Detector
Specialized detection for ChatGPT text — scans for proprietary HTML attributes and markers unique to ChatGPT's web interface.
Claude AI Detector
Detect text generated by Anthropic's Claude AI by scanning for hidden Unicode markers and formatting patterns.
Gemini AI Detector
Detect text from Google Gemini (formerly Bard) by scanning for hidden characters and technical fingerprints.
Which Tool Should I Use?
Start with the Text Cleaner for anything copied from an AI chat — it runs the full pipeline. Use the ChatGPT Watermark Remover when the text came from ChatGPT specifically, or the ChatGPT Space Remover when the problem is extra spaces, blank lines or invisible Unicode characters. For text that pastes with asterisks and hashes, use the ChatGPT Formatting Remover. The AI Detector and its ChatGPT, Claude and Gemini variants tell you whether text carries AI markers without changing it.
All tools run entirely in your browser using client-side JavaScript. No text is ever uploaded, stored, or processed on any server. You can verify this by disconnecting from the internet and using the tools offline — they work exactly the same way.
Compatible with Every AI Tool
Our detection and cleaning tools work with text from every major AI platform. Each tool's interface injects its own combination of hidden markers, and we scan for all known patterns.
Browser Extension
Browser extension
Select text on any page, right-click, Clean selected text with GPT Cleanup. Same engine, runs locally, no network requests.
Learn More on Our Blog
Guides on how hidden characters get into copied AI text, how detection works, and how ChatGPT, Claude and Gemini output differs.