GPT Cleanup — AI Text Cleaner

Remove hidden characters, zero-width spaces and Markdown symbols from ChatGPT, Claude and Gemini text. Free, 100% local.

Text copied from ChatGPT, Claude, Gemini and other AI chats carries invisible characters you cannot see: zero-width spaces (U+200B), byte order marks (U+FEFF), non-breaking spaces (U+00A0), word joiners (U+2060) and direction marks. They break keyword matching, corrupt code and spreadsheets, and show up as hidden markers in pasted documents. GPT Cleanup removes them in one click — together with the Markdown symbols (**, ##, list markers, tables, code fences) that show up when you paste AI text into Google Docs, Word, Slack or a CMS. • Select text on any page → right-click → "Clean selected text with GPT Cleanup". The clean version is copied to your clipboard and, in text fields, replaces the selection. • Or open the popup, paste, click Clean, click Copy. • See exactly what was removed: zero-width characters, non-breaking spaces, control characters, smart quotes, dashes. • Markdown removal can be switched off in the popup if you want to keep the symbols. • Keeps emoji intact: zero-width joiners inside emoji sequences (👨‍👩‍👧) are preserved. • 100% local. The extension has no host permissions and never sends text anywhere. Removes: U+200B, U+200C, U+200D (except in emoji), U+2060, U+FEFF, U+200E, U+200F, U+00AD; replaces U+00A0 with a normal space; normalizes curly quotes, em dashes and ellipsis to ASCII. Full web version, watermark remover and AI detector: https://gpt-cleanup.com