About SuperHumanizer
We build an AI humanizer for people who draft with a model and still have to publish something a person will read.
Why we built an AI humanizer
AI writing tools are fast, cheap and tireless. They are also recognisable. Ask a model for eight hundred words and you get eight hundred competent words that all sit at the same pitch. Sentences run to a similar length. The vocabulary hovers in a safe middle band. Paragraphs open with the same handful of connectives.
Most readers cannot name what is wrong. They just stop reading. That was the gap we wanted to close: keep the speed of the draft, put back the texture that makes writing worth finishing.
What we believe
- The writer stays in charge. A rewrite handles rhythm and phrasing. It cannot know that your data came from a client in Leeds or that you disagree with the consensus. That part is still your job, and it should be.
- Basic access should be free. Nobody needs a subscription to make a paragraph read better. The core humanizer works without an account.
- Your words belong to you. We do not sell text or hand it to advertisers. The privacy policy spells out exactly what happens on this site, which is very little.
- Say what the tool does. It is an editing pass. We would rather explain the limits than promise magic.
How the rewrite works
Before anything changes, the text gets measured: how sentence lengths are distributed, which openers repeat, where the filler sits, how predictable each next word is. The rewrite then happens paragraph by paragraph rather than word by word. That distinction matters. Word-level synonym swapping is what produces the strange, stilted output people associate with older rewriting tools, because a word only makes sense inside the sentence around it.
You get two depths. Quick polish keeps your phrasing and repairs the delivery, which suits a draft that is nearly there. Deep rewrite rebuilds sentence structure and vocabulary, which suits text that still sounds like it came out of a prompt box. Either way, the pass takes seconds.
Who runs this
SuperHumanizer is operated by Rayyan Khan from London, United Kingdom, with a small group of engineers and editors. Small is deliberate. It means a bug reported on Tuesday can ship as a fix on Thursday, and it means the people who answer support email are the people who write the code.
If the tool handles a piece of writing badly, send it to us. Awkward output is the most useful thing we receive, because it goes straight into how the next version gets tuned. The contact page has the address.
About this domain
superhumanizer.io is the brand domain for SuperHumanizer. The tool runs on superhumanizer.ai, and the button on the home page takes you there. We hold this domain so the SuperHumanizer name cannot be used by anyone else, and we publish here rather than leaving it parked.