Paste the draft that
still sounds like Claude.

Most likely that you write in a regular, even style, which is the single thing the detector weighs most heavily and the thing it is most often wrong about. Short paragraphs are the known weak spot: news-style and punchy marketing copy score far too high, and genuinely human-written news articles have scored around 99%. Formal and academic registers push it up too.

So: a high score is a probability, not a finding, and it is not calibrated — 90% is a raw model output, not a claim that 90 of 100 such texts were machine-written. If someone is using a number like this as evidence about you, that is a misuse of it, and we would say so in writing. What the reading is good for is your own judgement about your own draft before you send it.

Writing you are entitled to send that happens to read like a model: reports, proposals, marketing copy, client-facing email, and drafts written in a second language that came back fluent but not yours.

It is not for passing off work in a setting where using a model is not allowed. If you are somewhere a model is not permitted, rewriting the output does not change that, it only makes the problem harder to see.

Because it is a real analysis rather than a canned animation, and it costs us something each time. One per visitor, no account, which is also why this page does not spend it for you: the box above carries your text to the demo rather than running anything here, so your free run is still yours when you arrive. Signing up lifts the cap and brings 1,000 Humanizer words with it, with no card.

No, and we won't claim otherwise. It is an editor for readability and voice, and it makes no claim about how Turnitin, GPTZero, Originality.ai or any other detector will read the result.

No rewriting service can promise you a third party's verdict. Anyone who does is guessing.

It keeps your claims, your figures, your names and the shape of the argument, and changes sentence rhythm, hedging and the phrasing a reader recognises as AI. Names and figures are swapped for placeholders before the rewrite and restored afterwards, so the real ones are never part of what gets rewritten; if a figure comes back altered, that paragraph is discarded and your original kept.

It is a model with a set of quality checks acting as its editor, not a thesaurus, and not a person. There are no human linguists in the loop and we would rather say so than sell you one. About 50 seconds for a typical five-paragraph document, two minutes at the outside. Formal writing is the hard case, because tone drifts most there.

For one paragraph, you probably should. The difference is that a chatbot rewrites once and hands you the result with no idea whether it worked. It cannot mark its own homework. Here each paragraph gets several versions, and one replaces your text only if it passes about a dozen quality checks: meaning, figures and names intact, nothing truncated, no leaked model chatter, none of roughly fifty banned AI clichés.

The demo is free and needs no account. Signing up grants 1,000 Humanizer words, once, with no card. After that it is $9.90 a month or $99 a year — the same plan billed differently: unlimited detections, 5,000 Humanizer words a month, uploads and exportable reports on both. Run out of words and you can buy more without changing plan. Cancel whenever.

The text you submit and the rewritten result are saved, including free demo runs, and with an account they appear in your history so you can reopen them. It is never used for training, and never sold or shared. Detection runs inside our own service, so scored text does not go to an outside company at all. Encrypted in transit and at rest. The service is operated by Girema Holdings Limited, registered in Limassol, Cyprus, so it sits under EU data protection law: you can ask for a copy of your data, a correction or its deletion at any time. Full detail in the privacy policy.