Cognia
Fast rewrite
The quick mode. Cognia rewrites in seconds and is tuned to remove the patterns AI detectors flag most often. Use it for short drafts and tight deadlines.
Free, no sign-up needed
Rewrite AI-generated text while preserving your message and tone. Reduce patterns AI detectors flag, then review every change before you use it.
Add your text
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TXT, PDF, DOCX · 5 MB max
Your rewrite appears here
Changed wording will be highlighted here while the original stays plain and editable.
How it works
A useful rewrite should make its edits reviewable, not ask you to trust a black box.
Start with as few as 30 words by pasting text or uploading a TXT, PDF or DOCX file. Longer passages give the rewriter more context to preserve the point and voice.
Cognia is the fast mode with a 1,000-word free allowance. Huma takes longer, rewrites more deeply and produces the most natural result, with 500 free words.
The original stays plain and editable. Only changed wording in the humanized result is highlighted, so the comparison remains easy to scan.
Definition
An AI humanizer is a rewriting tool that takes machine-generated text and reworks its phrasing, sentence rhythm and transitions until the draft reads the way a person actually writes. Generated drafts share recognizable habits: uniform sentence length, filler transitions such as “additionally” and “in conclusion,” and a hedged, overly polite register. A good humanizer clears those habits out while keeping the meaning you asked for.
Plenty of tools can humanize AI text. Very few let you review what they did to it. This one is built around review: the original stays editable, the rewrite sits beside it and every changed phrase is highlighted, so the final call on wording stays with you.
Before and after
Most AI humanizers return a finished block of text and leave you guessing what changed. This one puts the before and after side by side and marks every changed phrase, so you can check the rewrite against your meaning before you use it.

Rewrite modes
Cognia is built for speed. Huma is built for the most natural result. Neither guarantees a specific detector score, so choose based on the document in front of you.
Cognia
The quick mode. Cognia rewrites in seconds and is tuned to remove the patterns AI detectors flag most often. Use it for short drafts and tight deadlines.
Huma
The deep mode. Huma takes longer and reworks sentence rhythm more thoroughly, producing the most natural prose of the two. Use it when the writing itself is the product.
Built for revision
Humanize a rough AI-assisted draft into prose you can verify, source and revise in your own voice before submission.
Reduce repetitive phrasing in contributed drafts while keeping a visible record of what the rewrite changed.
Polish generated first drafts without losing the ability to compare wording, recover context and make a final human edit.
Common questions
The tool is designed for transparent revision. You still own the final fact-checking, disclosure and editorial judgment.
An AI humanizer rewrites machine-generated drafts so the phrasing, rhythm and transitions read the way a person writes. Most tools return a finished block of text and ask you to trust it. This one shows the original beside the result and highlights every changed phrase, so you decide what stays.
It rewrites phrasing, sentence rhythm and transitions while aiming to preserve the original meaning and structure. The editable original remains beside the result so you can revise and humanize it again whenever the wording drifts from your point.
Any of them. Paste a draft from ChatGPT, Claude, Gemini, DeepSeek, Copilot or your own template pipeline. The tool rewrites the text in front of it and does not need to know which model produced the draft.
Yes. Cognia accepts up to 1,000 words per free rewrite, and Huma accepts up to 500 words. Signed-in paid accounts can submit longer documents, which may continue as a background job.
No. Detector scores are probabilistic and can differ by product, model version, language and later edits. Use this tool to improve clarity and voice, not as a guarantee about any detector or as a substitute for disclosure rules.
That depends on the rules you write under, not on the tool. Humanizing your own AI-assisted draft for clarity is ordinary editing. Presenting generated work as fully your own where disclosure is required, or where AI use is banned, is a policy problem no rewriter fixes. When in doubt, disclose.
Only the changed wording in the humanized result is highlighted. The original stays plain, so the two are easy to compare side by side. If a change reads wrong, edit either side and run the rewrite again.
Yes. Use the pencil control to edit the result, then switch back to the highlighted view. The original remains editable too, with a Rehumanize action for running the revised input again.
TXT, PDF and DOCX files up to 5 MB are supported. Text is extracted in your browser. PDFs are limited to the first 25 pages, and scanned PDFs need OCR before they contain selectable text.
Nothing is sent while you type. When you choose Humanize text, the passage is sent to the rewriting service. Requests made while signed in may be saved to account history, so do not submit confidential text you are not allowed to share.
The service detects the submitted language automatically and can route non-English writing to its multilingual rewrite path. Quality and the effect of the selected mode can vary by language, so review every result closely.
Rewriting improves presentation, not truth. Run the humanized draft through the AI detector to see how the authorship signal shifted, and scan for reused material before publishing.