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AI humanizer

A free AI humanizer on Hemmingway-1.5, which passes GPTZero & Pangram 9 times in 10. Paste a draft, your own or AI-written, and it rewrites it in a person's voice.

Opens Hemmingway with this filled in. Free to try, no card needed.

Hemmingway-1.5, the model behind this humanizer, writes text that passes GPTZero & Pangram and the top AI detectors 9 times in 10, and by its Hugging Face card 89% of its rewrites of AI text passed the same detectors. That is our undetectable AI, with how it was tested.

Paste a draft that reads stiff, whether you wrote it or an AI did, and Hemmingway rewrites it so it sounds like a person wrote it. It keeps what the draft says and changes how it says it: plainer words, natural sentences, less filler. You read it, change what you like, and send it yourself.

It only uses what is in your draft. It will not add facts, examples or promises that were not there, so the meaning stays yours.

It is built first for the person reading it: an email, a message, a post, a note to your team, a product listing.

What makes it work

  • Paste the whole draft. It needs the full text to keep the meaning and the order of what you say.
  • Say who will read it. A note to a client and one to a friend should not sound the same, even with the same facts.
  • Say how it should sound. "Plain and direct" or "warm but short" is enough to steer it.

An example

Given the draft "I hope this message finds you well. I wanted to reach out regarding the upcoming project timeline and kindly request an update at your earliest convenience", for a client, in a plain, direct tone, a rewrite along these lines is what to expect:

Hi, could you send me an update on the project timeline when you get a chance?

Same request, without the stock opening. If you want it warmer or a little longer, ask in the chat and it rewrites it.

Common questions

Is the AI humanizer free?

Yes. Hemmingway has a free trial with no card needed. When free drafts are available, this tool writes the rewrite on this page, without an account. Otherwise it opens Hemmingway with your draft filled in, you sign up once, and the rewrite is written in the chat.

Will this get my text past AI detectors?

Most of the time, by our test. By its Hugging Face card, 89% of Hemmingway-1.5's rewrites of AI text passed GPTZero & Pangram and four other AI detectors, and 90% of what it wrote from scratch passed.

Why does it sound more human than other rewriters?

Hemmingway-1.5, the model behind it, passes GPTZero & Pangram and the top AI detectors 9 times in 10. It is English-first, so it works best on English drafts.

Is my draft used for training?

No. Chats, including anything you paste in, are never used for training. For more on why drafts sound stiff and how to fix them by hand, see the guide on making AI text sound human.

Write it with Hemmingway

Read next

  • How to make AI text sound humanWhy AI text reads as AI, the habits to cut, and how to rewrite it by hand, or with Hemmingway-1.5, whose writing passed GPTZero & Pangram 9 times in 10 in our test.
  • AI that writes like a humanWhat AI that writes like a human takes, and how we test it. Hemmingway-1.5's writing passed GPTZero & Pangram and four AI detectors 90% of the time, more than people's.
  • How to make AI write like youPractical ways to get an AI to write in your own voice: what to give it, what to ask for, what to cut, and when a model built for it saves the effort.
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  • The most human-sounding AI in 2026Which AI sounds most human in 2026? AI detectors passed 90% of Hemmingway-1.5's writing. Our blind test scores, where others do better, and how to check.
  • Tone changerA free tone changer. Paste your text and say the tone you want: friendlier, firmer, more formal or more casual. Hemmingway rewrites it and keeps the facts.