Undetected.ai

See your AI-pattern score before and after, measured live

AI humanizer: humanize AI text so it reads like you wrote it

Paste your own text and get it back rewritten: natural, human-sounding prose that keeps your meaning, with our AI-pattern score measured on it before and after.

The Humanizer

Try:
Tone
Strength:

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.

AI-pattern score

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 ·

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SENTENCE RHYTHM TEMPLATE PHRASES VOCABULARY VARIETY PASSIVE VOICE

Our own score before and after

Your text meaning intact

Why writers switch

An AI humanizer built around proof, not promises

Most humanizers hand back rewritten text and ask you to take the result on trust. Undetected.ai rewrites your own text, keeps your meaning intact, and shows our AI-pattern score before and after with the reasons behind it.

Rewrites the patterns that read as machine

One pass over your own text: the metronomic sentence rhythm, the template transitions, the agentless passive voice. It is your paragraph that comes back, rewritten, not a sample of somebody else's.

Our AI-pattern score, with its reasons

A gauge scores your text before and after on four things we can actually measure, and lists what pushed the number up. It is our own score, not a reading from GPTZero, Turnitin or any other detector.

Reads human, keeps your meaning

Natural rhythm and burstiness, your facts and argument intact. Undetected.ai rewrites the robotic patterns, not your point, so the output is prose a person would actually publish.

Writing that stops looking machine-made

Genuinely edited writing still gets flagged, because detectors read patterns rather than intent. Fixing the patterns is what you can control, and it is the part this tool does.

How to humanize AI text

From machine rhythm to your own voice in three steps

No prompt engineering, no manual rewriting. You paste the text and Undetected.ai rewrites it, with the AI-pattern score showing what moved.

1

Paste your AI-written text

Drop in a blog post, email, essay, or product copy. We measure it first and underline the template phrases we actually found in it.

2

Pick a tone and humanize

Choose Standard, Academic, Casual or SEO, set the strength, and humanize. Your text goes to the model and comes back rewritten.

3

Copy text that reads human

Get natural, human-sounding prose that keeps your meaning, with our AI-pattern score for the rewrite next to the score for the original.

Before and after

See the robotic tells rewritten into natural prose

This is the real output. The phrases detectors flag, the "Moreover," the "it is important to note that," the uniform rhythm, get rewritten into writing with the burstiness and voice of a person, while your meaning stays exactly where it was.

  • Robotic transitions and filler phrases removed
  • Natural sentence-length variation (real burstiness)
  • Your facts, argument and structure kept intact
  • Our AI-pattern score measured before and after
BLOG POST Rewritten

Moreover, it is important to note that consistency is the key to building an audience over time.

Humanized

Consistency is what actually builds an audience. Show up, week after week, and it compounds.

MARKETING EMAIL Rewritten

We are excited to announce that our new collection is now available for purchase.

Humanized

The new collection just dropped, and the first run never lasts long.

STUDENT ESSAY Rewritten

In conclusion, the evidence clearly demonstrates that the policy had a significant impact.

Humanized

Taken together, the evidence makes the case hard to argue with: the policy changed things, and not at the margins.

What the score measures

Our AI-pattern score, and how it is worked out

This is our own measurement, made here on your text. It is not a GPTZero, Turnitin, Originality.ai, Copyleaks or ZeroGPT result, and we do not claim it predicts one. Every point it gives back comes with the reason that earned it.

Signal What it looks at Weight
Sentence rhythm How much sentence length varies. Unedited model output holds a near-constant beat; people swing between short and long. 35 points
Template phrases "In conclusion", "It is important to note", "Moreover", "delve", "tapestry" and about sixty more, counted per hundred words. 30 points
Vocabulary variety Distinct words per fifty-word window, so the figure does not simply fall as a piece gets longer. 20 points
Passive voice An estimate of how many sentences are agentless. Reported as an estimate, because it is a heuristic and not a parse. 15 points

No tool can promise you a score from a detector it does not control, and detectors retrain constantly. What you get here is our own reading of your text, the reasons behind it, and the rewrite itself.

Simple, paid plans

Plans that scale with how much you write

Every plan is sized by monthly word volume and includes the AI-pattern score, every tone, and meaning-preserving rewrites. Prices in USD, billed yearly.

Pricing is planned, not yet available. You cannot buy Undetected.ai today. These are the prices we intend to launch with. The humanizer itself is live: create a free account and use it now.

Starter

Students and light writers

$9/mo

  • 15,000 words across 60 runs a month
  • Up to 8 runs in any 24 hours
  • 1,500 words a run, same on every plan
  • Our AI-pattern score before and after, every tone and strength
Most popular

Pro

Content writers and freelancers

$19/mo

  • 80,000 words across 200 runs a month
  • Up to 27 runs in any 24 hours
  • 1,500 words a run, same on every plan
  • Our AI-pattern score before and after, every tone and strength

Scale

SEO teams and agencies

$39/mo

  • 250,000 words across 400 runs a month
  • Up to 54 runs in any 24 hours
  • 1,500 words a run, same on every plan
  • Our AI-pattern score before and after, every tone and strength

Prices in USD, billed yearly. There are three plans and no others: no Team tier, no seats and no API. See the full pricing page.

Before you start

The questions writers ask first

No, and we will not pretend otherwise. We have no access to those detectors and cannot show you their verdicts. What we show is our own AI-pattern score: a measurement we make here on sentence rhythm, template phrases, vocabulary variety and passive voice, before and after the rewrite, with the reasons behind the number.
Yes. Undetected.ai rewrites the robotic patterns, not your point. Your facts, argument and structure stay intact, so the output reads natural and is still genuinely your writing, not damaged or off-topic text.
No. It writes with natural rhythm and burstiness, the way a person actually writes, instead of swapping in thesaurus words that read worse than the original. The result is prose you would be happy to publish.
No. Undetected.ai is for making AI-assisted drafts read naturally and professionally. It is built for marketers, SEO teams, content writers and students who want their work to read like a person wrote it.
Here is the honest version. We save the text you paste and the rewrite we produce, so your history is waiting on your account page when you come back. Every run has a delete button, and we delete runs automatically after 90 days. We train nothing on it and sell it to nobody. The rewrite itself is produced by Google's Gemini API, so your text is sent to Google; our privacy page explains exactly what Google may do with it on the tier we are on today.
Yes. Choose Standard, Academic, Casual or SEO, and set how light or strong the rewrite should be, so the output matches the piece you are working on.

Make your next draft read like you wrote it

Paste your own text, pick a tone, and read the rewrite next to the original with both scores on screen.

Meaning kept · Your own text rewritten · Saved to your history, delete any time

Humanize my text