About AI Text Cleaner
AI Text Cleaner is a free online tool for removing hidden characters, markdown artifacts, and formatting issues from AI-generated text. Whether you use ChatGPT, Claude, Gemini, or any other AI assistant, the output often contains invisible characters, smart quotes, em dashes, and markdown leftovers that cause problems when pasting into documents, CMS editors, email clients, and code editors.
This tool solves that problem. Paste your AI text, click clean, and copy the result. Everything runs in your browser — no sign-up, no data collection, no server processing. It is the fastest way to clean AI text formatting before publishing, sharing, or using it in your workflow.
What it fixes
- Hidden and invisible Unicode characters
- Non-breaking spaces from AI copy/paste
- Smart quotes and curly quotes converted to standard quotes
- Em dashes and en dashes normalized to regular dashes
- Ellipsis characters converted to three periods
- Trailing whitespace at the end of lines
- Markdown headings (##, ###) stripped for plain text
- Asterisks used for bold/italic/bullet formatting removed
Who it's for
Content writers, marketers, developers, students, and anyone who copies text from AI tools into other applications. If you have ever pasted ChatGPT output into Google Docs, WordPress, Notion, or an email and noticed strange formatting, this tool is for you.
Built by Gary Meehan
AI Text Cleaner is built and maintained by Gary Meehan, an AI engineer and founder based in Ireland. Gary builds AI-driven tools and products, and maintains next-seo, a popular open-source SEO library for Next.js.

Gary Meehan
Building AI agents and useful tools
Frequently asked questions
Does AI Text Cleaner store or save any of my text?
No. All text processing happens entirely in your browser. Your text is never sent to our servers or any third party. Nothing you paste is stored, logged, or transmitted anywhere.
What usage data do you track?
We collect simple, anonymous statistics such as the number of characters cleaned and page views via Google Analytics. These counts help us understand general usage patterns. They cannot be linked to any individual user or to the content of any text.
Is AI Text Cleaner really free?
Yes, completely free with no sign-up required. The site is supported by ads. You can paste, clean, and copy as many times as you like.
Which AI tools does this work with?
AI Text Cleaner works with text from any AI tool including ChatGPT, Claude, Gemini, Copilot, Jasper, and others. It targets common formatting artifacts like hidden characters, smart quotes, markdown symbols, and non-standard spacing that most AI models produce.
Can I use this for non-AI text?
Absolutely. While the tool is optimized for AI-generated text, it works on any text with formatting issues. It is useful for cleaning text copied from PDFs, websites, emails, or any other source with unwanted formatting.
Try the tools
- AI Text Cleaner — The full text cleaning tool with all options
- ChatGPT Text Cleaner — Preset for cleaning ChatGPT output
- AI Cleaner — Quick AI text cleanup tool