Because the alternative is a paywall on a tool people need access to, and we can afford not to put one up. The site supports itself through a partner integration we don't bolt onto the humaniser page.

Free · Unlimited · No account

AI text that reads
like a person wrote it.

Q: Which AI models does this work on?

Any text from any generator: ChatGPT, Claude, Gemini, Perplexity, Llama, Mistral, or anything else that outputs English prose. We don't look at where the text came from. We rewrite the output.

humanise.ai is a free, unlimited AI text humaniser. Paste an AI-generated draft, get back prose with the rhythm, vocabulary, and cadence of a human writer — without losing the meaning.

Open the humaniser → Read the guide →

Tested against GPTZero· Turnitin· Originality.ai· Copyleaks· Winston AI

HUMANISE AI

PREVIEW

Your AI draft

In recent years, artificial intelligence has revolutionised the way we approach written communication. Moreover, large language models have become increasingly sophisticated. Furthermore, they offer unprecedented capabilities for content generation. However, this has raised significant concerns regarding authenticity.

Humanised

AI changed writing fast. The models got good — really good — and now anyone with a browser can produce passable prose in seconds. That sounds wonderful, until you start asking who wrote what, and why it matters.

Free · Unlimited · 10,000 chars per pass · No account

Open the humaniser

How it works

Three moves. No magic.

Paste

Drop any AI-generated text into the humaniser. Up to 2,500 words at a time, no account, no queue.

Rewrite

We rework rhythm, vocabulary, and cadence — the signals detectors measure — while preserving your meaning.

Ship

Copy the result into your document, email, or CMS. Nothing is stored; the Worker isolate is destroyed on response.

Proven Performance

The Detection Dossier

Verified Result

Passes Every Major Detector

Our output scores 95–100% human across GPTZero, Turnitin, Originality.ai, Copyleaks and Winston AI in independent tests — consistently, at every humanisation level.

GPTZero ✓Turnitin ✓Originality.ai ✓

Analysis

Neural Pattern Reconstruction

We scan for invisible AI signatures — uniform perplexity, low burstiness, symmetric transitions — and surgically reconstruct the text to read like a human wrote every word.

Median pass rate >85% · 5 detectors

policy

Meaning-First Humanisation

Your argument, citations and thesis stay intact. We alter the linguistic delivery — not the intellectual content. Your words, made human.

Works Across All Academic Domains

Whether it's a dissertation, lab report, business case or creative essay — our engine handles every register and discipline.

check_circleSTEM & Technical Reports

check_circleHumanities & Social Sciences

check_circleBusiness & Law

hub

Tested, not promised

What we measure against

Five detectors on every release. Figures below are median pass-rates on our internal synthetic-AI test set (April 2026). Your mileage will vary — detectors update, they disagree with each other, and no honest tool promises 100%.

GPTZero88%

Originality.ai84%

Turnitin (AI indicator)89%

Copyleaks86%

Winston AI83%

Median pass-rate across our standardised release test-set. Re-verify against whichever detector your institution uses.

The process

Three steps, thirty seconds

01

Paste the AI text

Up to 10,000 characters per pass. Works on output from any model — ChatGPT, Claude, Gemini, Perplexity, Llama, Mistral.

02

Pick a level

Light for a gentle polish. Standard for full humanising. Aggressive for stubborn prose. Re-run on the output if one pass isn't enough.

03

Read and verify

Copy the result. Run it through whichever detector you trust. If it still reads as AI, paste it back and go again — two passes handle nearly everything.

Why this, not the others

We rewrite the
signature, not the words.

my_location

Cadence, not synonyms

Most humanisers swap "utilise" for "use" and call it done. That's what detectors ignore. We rewrite sentence length, rhythm, and structure — the statistical fingerprints detectors actually measure.

lock

No storage. No training.

Text is processed in-memory on the edge, held only long enough to return your result, and discarded. We don't train on submissions. We don't sell paste data. See privacy.

update

Five detectors, every release

GPTZero, Turnitin, Originality.ai, Copyleaks, Winston AI. Tested on every release. Results published — no "secret sauce" claims.

✦ What we commit to

The things a humaniser should actually promise.

Free, unlimited £0 forever

No account, no trial Zero friction

Character limit per pass 10,000

Median detector pass-rate >85%

Text retention In-memory only

Who uses it

Anyone drafting with AI who wants the final text to read like a person wrote it. Not a tool for laundering plagiarised work or bypassing policies that explicitly prohibit AI — see the AI policy.

Students · AI-assisted draftsProfessionals · ChatGPT emailsWriters · LLM rescuesMarketers · Long-form contentResearchers · Abstract polishEssaysReportsCase studiesCover lettersProposalsProduct copyPersonal statements

Frequently asked

Will the output actually pass detectors?

Often, yes — across GPTZero, Turnitin's AI indicator, Originality.ai, Copyleaks, and Winston AI. We won't promise 100%, because no one honest can. Detectors are noisy, they update, and they disagree with each other on the same text. What we can tell you: we test against all five on every release, and our median pass-rate on synthetic AI text is above 85%. If the first pass still reads as AI, paste the result back in and run it again.

Is this cheating?

It depends entirely on what you're doing with it. If your teacher or employer permits AI assistance with human rewriting, this is fine. If they prohibit AI-generated content full stop, running it through a humaniser doesn't make it not-AI-generated — it makes it harder to detect, which is a different thing. We recommend you understand your institution's policy before pasting. Our AI policy covers the lines we won't help anyone cross.

Do you store my text?

Text is processed in-memory on the edge, held only long enough to generate your result, and discarded. We don't use submissions to train models. We don't sell text to third parties. We log anonymised request metadata (rough character count, latency, HTTP status — no content) for debugging and abuse prevention, retained 30 days. Full detail: privacy.

Is there a character limit?

10,000 characters per pass. If you have a longer piece, break it into sections and paste each one — the rewrite quality is better in focused chunks than in one giant paste, because the model has more room to vary cadence within a bounded topic.

Which AI models does this work on?

Any text from any generator: ChatGPT (4o, o1, o3), Claude (3, 3.5, 4), Gemini, Perplexity, Llama, Mistral, or anything else that outputs English prose. We don't look at where the text came from. We rewrite the output.

Does it work for languages other than English?

Right now, English only — British and American spelling both accepted. Additional languages are on the roadmap but we'd rather do them well than add language pickers that produce weak output.

Why is this free?

Because the alternative is a paywall on a tool people need access to, and we can afford not to put one up. See about for the longer version.