Write like you.
Paste an AI draft. Twin, the free AI humanizer, rewrites it into natural writing — and in your own voice if you show it how you write.
- Free up to 500 words
- No sign-up
- Facts kept, checked
By using Twin you agree to the terms. Use it in line with your school's or employer's rules on AI tools.
Most humanizers sound like a stranger. Twin sounds like you.
Generic humanizers swap words until the text sounds “human” — usually someone else's. Voice Match learns your style once, then every rewrite comes back in it.
Show Twin how you write
Paste 40+ words of your own writing. Do it once; Twin remembers it in this browser.
Paste your AI draft
From ChatGPT, Claude, Gemini or anywhere. Pick a strength and tone.
Get your version
Same meaning and facts, in your rhythm and word choices. Copy it and you're done.
Your meaning stays locked
The most common complaint about AI humanizers is that they quietly change what you said. Twin's Meaning-Lock checks every rewrite against your draft and tells you if anything moved.
- Numbers and percentages42%, $1,200, 2026
- Quotationskept word for word
- Citations(Smith, 2021), [3]
- Linksnever altered
- Lengthwithin about 10%, never summarized
How Twin compares
What you get from Twin versus a typical free AI humanizer.
| Feature | Twin | Typical free humanizer |
|---|---|---|
| Writes in your personal style | Yes, with Voice Match | No, one generic voice |
| Checks facts survived the rewrite | Yes, Meaning-Lock | Rarely |
| Free words per rewrite | 500, no sign-up | Usually 100–300 |
| Keeps your length | Within about 10% | Often shortens long text |
| Built-in AI detector | Yes, with reasons per sentence | Score only |
| Honest about detector limits | Yes | Often claims “100% undetectable” |
Questions
What is an AI humanizer?
An AI humanizer rewrites text produced by tools like ChatGPT, Claude or Gemini so it reads like natural human writing: varied rhythm, plain words, no stock phrases. Twin goes one step further and can match the way you personally write.
Is Twin free?
Yes. You can humanize up to 500 words at a time with no sign-up and no card. The free AI detector checks up to 1,200 words.
How does Voice Match work?
Paste at least 40 words you wrote yourself — an email, an essay, a post. Twin studies your sentence length, punctuation, favourite connectors and formality, then writes the rewrite in that style. Your sample stays in your browser and is only sent along with each rewrite you request.
Will Twin change my meaning?
It shouldn't, and it checks. Meaning-Lock finds the numbers, quotes, links and citations in your draft and confirms each one appears in the rewrite. If anything is missing, Twin lists it so you can fix it before you copy.
Can Twin guarantee my text passes AI detectors?
No tool can honestly promise that. Detectors change often and disagree with each other, and they sometimes flag text people wrote themselves. Twin focuses on writing that reads naturally to people, which is what matters most to your readers.
Can I use Twin for school or university work?
Follow your institution's rules on AI tools. Many allow AI help with wording but require that the ideas and research are your own, or that you disclose AI use. Twin is built to polish writing, not to replace your own work.
Which languages does Twin support?
Twin rewrites in the language you paste, including English, French, Spanish and Arabic. Results are strongest in English.
Check your text first
See which sentences read as AI, and why, with the free detector.