AI Output Cleaner
Clean ChatGPT or Claude text before publishing, sending or editing.
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Everything runs in your browser. Your text never leaves this page.
Why clean AI-generated text?
This AI output cleaner takes raw text from ChatGPT, Claude or Gemini and turns it into clean, publish-ready copy in one click. AI text rarely arrives ready to use: it comes packed with Markdown headings, bold stars, bullet lists, polite filler and a layer of invisible characters you cannot even see. All of it looks fine in a chat window but wrong in a blog post, an email or a CMS — and some of it quietly marks the text as machine-generated. Cleaning it first saves you from deleting that formatting by hand, line by line.
Remove hidden characters and invisible Unicode
This is what most "remove formatting" tools miss. Assistants frequently insert zero-width spaces, word joiners, a byte-order mark and unusual non-breaking spaces between your words. You never see them, but they inflate your character count, break find-and-replace and search, confuse spell checkers, and are a common signal that a paste came straight from an AI. Keep Remove hidden characters ticked and every one of them is stripped, while your real spaces and line breaks stay exactly as they were.
The same pass handles the famous em dash (—), the single clearest tell of AI writing. With Convert smart quotes and dashes on, em dashes and en dashes become a plain hyphen and curly quotes become straight ones, so the result reads like something a person actually typed.
What this AI output cleaner removes
Every option is a toggle, so you stay in control. These are on by default for AI text; untick anything you want to keep.
| What it removes | Examples | Why it matters |
|---|---|---|
| Hidden / zero-width characters | zero-width space, word joiner, BOM | Invisible, but inflate counts and flag AI text |
| Non-breaking & odd spaces | NBSP, narrow no-break space | Look like spaces but break wrapping and search |
| Em & en dashes | — – → - | The most obvious giveaway of AI writing |
| Smart / curly quotes | “ ” ‘ ’ → " ' | Cause mojibake in plain text and code |
| Markdown formatting | #, **bold**, links | Shows as raw symbols outside a Markdown view |
| Bullet symbols | • - * | Leftover list markers when you want prose |
| AI boilerplate | "As an AI language model…" | Filler openers and closers add no value |
| Repeated headings | A title printed twice in a row | A frequent quirk in longer AI answers |
Remove Markdown, bullets and AI boilerplate
Beyond hidden characters, the cleaner strips the formatting assistants add automatically: heading marks, bold and italic symbols, inline code backticks and bullet characters. Link syntax is reduced to its visible label, so removing Markdown from ChatGPT output leaves clean prose instead of raw symbols. It also deletes filler such as "As an AI language model" or "I hope this helps," and drops a heading the model printed twice in a row.
How to clean ChatGPT, Claude or Gemini text
- Paste your AI-generated draft into the box above.
- Leave the default options on, or tick exactly what you want removed.
- Click Clean text and review the result and its counts.
- Copy the polished text, or download it as plain text or Markdown.
Because everything runs locally in your browser with simple text rules, your draft never leaves the page — this is an AI text cleaner, not an AI tool, so it makes no API calls and stores nothing.
Good to know
Frequently asked questions
What are hidden characters in AI text?
AI assistants often paste invisible characters you cannot see: zero-width spaces, word joiners, a byte-order mark and odd non-breaking spaces. They inflate your character count, break find-and-replace and search, and can flag a paste as AI-generated. Keep Remove hidden characters ticked and they are stripped in one pass.
How do I remove the em dash from ChatGPT text?
The long em dash (—) is one of the clearest tells of AI writing. Keep Convert smart quotes and dashes ticked: it turns em dashes and en dashes into a plain hyphen (-), and curly quotes into straight ones, so the text reads like something a person typed.
How do I remove Markdown from ChatGPT output?
Keep Remove Markdown ticked. It strips headings (#), bold and italic markers (**, *, _), inline code backticks and link syntax, while keeping the visible words and link labels.
How do I remove "As an AI…" type phrases?
Turn on Remove AI boilerplate. It deletes common filler openers such as "As an AI language model," "I hope this helps" and "Let me know if…" so only the useful content stays.
Does it clean Claude and Gemini output too?
Yes. The same hidden-character, Markdown, spacing and boilerplate rules apply to any assistant. Whether the text came from ChatGPT, Claude or Gemini, the cleaner treats it the same way.
Is my AI text sent to a server?
No. This is not an AI tool and makes no API calls. The cleanup is plain text rules running entirely in your browser, so your draft stays private.
Does it detect AI-written text?
No. It does not score or detect AI authorship. Its only job is to clean formatting, hidden characters and filler so the text is ready to publish.