Humanize AI text · Free AI humanizer
AI humanizer free plans, compared: what a free AI humanizer actually gets you
Every tool in this category advertises something free, and almost none of them tell you the number until you are inside the product. So here it is up front, read off each vendor's own pricing page. BypassGPT gives 150 words a month. WriteHuman gives three requests a month at 250 words each, so 750 words. QuillBot caps each free paraphrase at 125 words. Undetectable.ai and Walter Writes both offer free usage without publishing the allowance.
Ours is a free account: 3 runs a day of up to 1,500 words and 9,000 words a month, no card, once you confirm your email address. Anyone can also run the demo above twice a day at up to 200 words without signing up at all. It is deliberately smaller than our cheapest paid plan, which starts at $9 a month for 15,000 words across 60 runs, because every rewrite costs us a real model call, and we would rather publish a number we can honour than a generous one we would have to withdraw.
The reason those numbers matter: a college essay runs 1,500 words and a blog post 1,200. The most generous free allowance in the whole category is 750 words a month. Free tiers in this market are sized to show you the product, not to finish your work, and any page telling you otherwise is selling you something.
2 free runs a day, up to 200 words each. We save your run so you can get back to it, and a delete button appears with the result. See privacy.
This is our own AI-pattern score, measured here on sentence rhythm, template phrases, vocabulary variety and passive voice. It is not a GPTZero, Turnitin, Originality.ai, Copyleaks or ZeroGPT result, and it does not predict one. Worth knowing: we also ask the rewrite to vary sentence length, drop template phrases and prefer the active voice, so some of the drop is built in. Read the two panels below, not just the number.
Before ·
After ·
Meaning kept · Your own text rewritten · Saved to your history, delete any time
Our own score before and after
Your text meaning intact
Why it works
What you get when you compare the free plans in this category
The real numbers, with dates
Free allowances across the category run from 125 words per paraphrase to 750 words a month, read off each vendor's own pricing page rather than estimated. Two vendors offer free usage without publishing a limit at all.
We charge, and we say so
Undetected.ai has a small free account: 3 runs a day of up to 1,500 words, 9,000 words a month, no card, plus a demo anyone can run twice a day without signing up. Paid plans are planned from $9 a month for 15,000 words and are not on sale yet. If your budget is genuinely zero, BypassGPT and WriteHuman will serve you better than we will, and we would rather point you there than waste your time.
Watch it work first anyway
The demo above runs the real engine on your own passage, marks the template phrases it found, and moves the gauge. Judge the approach before you judge the price, and check the free detectors yourself while you are at it.
What it handles
Natural prose, with the proof on screen
You paste the text and pick a tone. Undetected.ai rewrites the robotic patterns, keeps your meaning, and shows our AI-pattern score before and after.
- Every free allowance in the category, dated
- A small free account, its exact size stated up front
- Plans from $9/mo for 15,000 words
- Where rival free tiers beat us
- What 750 free words does not cover
Before, flagged as AI
Moreover, it is important to note that this approach delivers a significant impact across the board.
This approach actually moves the needle, and you feel the difference right away.
Why Undetected.ai
Readable output, and the measurement in view
Not word-salad that beats one scanner and reads worse. Natural prose that keeps your meaning, rebuilt sentence by sentence.
Our AI-pattern score, before and after
Four measured signals (sentence rhythm, template phrases, vocabulary variety and passive voice) scored on your draft and on the rewrite, with the reasons behind each number. It is our own measure, not a GPTZero, Turnitin, Originality.ai, Copyleaks or ZeroGPT reading, and we have no access to those services.
See the score change
The gauge animates from our AI-pattern score for your original to the score for the rewrite, with the reasons behind both numbers.
Keeps your meaning
Your facts, argument, and structure stay intact. Undetected.ai rewrites the robotic rhythm, not your point, so the output is publishable as is.
Good questions
Questions about free ai humanizer
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Learn moreFurther reading: How much does an AI humanizer cost? · Every claim in this category you can verify for $0 · Best AI humanizer in 2026, compared · Undetected.ai pricing and word limits
Make this draft read like you wrote it
Paste your own text and watch our AI-pattern gauge move from the score on your draft to the score on the rewrite, meaning kept intact.
Meaning kept · Your own text rewritten · Saved to your history, delete any time