ChatGPT humanizer
Humanize ChatGPT text for free. ChatGPT drafts carry habits that detectors pick up on, and Leap's in-browser cleanup pass strips the common ones so your draft reads more naturally.UpdatedThe cleanup runs in your browser and fixes common AI writing habits. It does not guarantee that the text passes any AI detector.
What the humanizer changes in ChatGPT text
The cleanup works from a fixed list, so you know exactly what it touches:| In ChatGPT's draft | After the cleanup |
|---|---|
| In today's fast-paced world, ... | Removed |
| It's important to note that ..., It's worth noting that ... | Removed |
| In conclusion, ..., In summary, ... | Removed |
| delve into | look at |
| utilize, leverage | use |
| furthermore, moreover, additionally | also |
| crucial, pivotal | key |
| seamless, robust, comprehensive | smooth, solid, full |
| foster, facilitate, enhance | build, help, improve |
| a testament to | a sign of |
| Em dashes and double hyphens | Commas |
| it is, do not, you are | it's, don't, you're |
| Zero-width and other invisible characters | Removed |
A real before and after
A ChatGPT-style paragraph we wrote, and the tool's output exactly as it came out:Before: In today's fast-paced world, remote work has become a game-changer for many teams. It's important to note that it is not the right fit for every company — some roles still need people in the same room. Furthermore, managers who leverage the right tools can foster a culture of trust. In conclusion, finding the right balance is a crucial step for any business that wants to stay competitive.After (10 changes): Remote work has become a big step up for many teams. It's not the right fit for every company, some roles still need people in the same room. Also, managers who use the right tools can build a culture of trust. Finding the right balance is a key step for any business that wants to stay competitive.The pass cleared the stock phrasing and left two things for you. The em dash became a comma splice, which reads better as two sentences, and "a big step up" is a literal swap that sounds odd here.What it leaves to you
- Words outside its list. "Navigate", "ensure", "multifaceted", "however" and "while" stay as they are.
- Rhythm. The tool lists same-length sentences but doesn't rewrite them.
- Specifics. Only you can add the example, the number or the source that a general ChatGPT draft is missing.
- Meaning. The swaps run on the whole text, quotations included, so check quotes and technical terms afterward.
Stop the habits at the source
You can ask ChatGPT for plainer text before you paste it here. In November 2025 Sam Altman said ChatGPT now follows a custom instruction not to use em dashes. The same settings take other preferences: short, direct answers, no "delve" or "it's important to note", varied sentence length and no summary paragraph at the end. It may not follow every one, so the cleanup still helps.Check the result with the detector
Paste the cleaned text into Leap's free AI detector. It scores the text from 0 to 100 from five writing signals and scores every sentence, so you can see which ones still read as machine-written. Treat the score as a signal, not proof: no cleanup guarantees any detector result, and a score should never be the only basis for accusing anyone of using AI.Frequently asked questions
You can ask it to, and a prompt that names specific habits works better than "make it sound human". Its rewrites can bring back the same stock phrases and steady rhythm, so check the result, or run it through a cleanup pass and edit the sentences that still sound like ChatGPT.
Yes. It's free with no sign-up and no word limit, and it runs in your browser. The only paid step is Rewrite, an optional full rewrite by a language model offered under the result.
It can. Turnitin's FAQ lists GPT models, including GPT-5 versions, among those its English detector covers, and since August 2025 it also looks for text changed by humanizer tools. Leap promises no detector result. Follow your school's rules on AI use.
Any of them. The cleanup works on the text you paste, so it doesn't matter which model or version wrote it, or whether it came from the chat, the app or the API.
The swaps change wording, not claims, but a literal swap can sound off in context, as in the example above. Read the result, and check quotes and technical terms, which the swaps also touch.
Yes, there's no word limit. For very long texts, work section by section so the list of same-length sentences stays short enough to act on.
No. The cleanup runs in your browser and nothing is stored. Your text leaves the page only if you press Rewrite under the result.