About AI Humanizer

Many people now start a draft with AI and then spend a long time making it sound like themselves. AI Humanizer does that rewrite in seconds: it varies sentence length and structure, replaces stock phrases and keeps what you meant to say. Next to the humanizer you will find an AI detector that shows a named third-party score, a tool that makes a text longer, an essay checker and an essay title generator.

We build for students, bloggers, professionals and people writing in a second language. The tool helps with the writing; the ideas, sources and decisions stay yours. Follow the rules of your school, employer or platform on AI use.

• Your facts stay. Every number, name, date and claim in your text is kept. The engine is told to add nothing new, and each result is compared with your original to check that the meaning held.
• Citations and quotes are locked. APA and MLA citations, direct quotations, links and any words you choose are set aside before the rewrite and put back exactly as written.
• No fake mistakes. Some tools add typos to look human. We never do; you get clean sentences you would sign.
• Written for each language. English, Spanish and Portuguese each have their own list of AI phrases to remove, not a translated copy of the English one.
• Honest about detectors. No tool can promise a pass on every AI detector, and we do not. Detector scores on this site come from named third-party services, never from a language model guessing.

• Signed as a team. Guides, reviews and comparison pages are published by the AI Humanizer Editorial Team. Every page shows the date it was last updated.
• How we test tools. For our review of AI humanizers we run the same 30 AI drafts (20 English, 5 Spanish, 5 Portuguese) through each tool’s free version with default settings, then measure how much meaning is kept, new claims added, contradictions, and spelling and grammar errors.
• Facts about other tools. Limits and prices come from each tool’s own website, with the date we checked them. Anything a tool does not publish is marked "Not stated".
• How often we update. We re-check reviews and comparisons every month and change the updated date only when the content changes.
• Conflicts of interest. We make AI Humanizer, and we say so on every page that compares it with other tools. No company pays to be listed or ranked, and we do not use affiliate links.
• Corrections. If you spot an error, email support@ai-humanizer.dev with the page and what is wrong. We check it and fix the page.

Without an account you get 1,000 words per run and 2,000 words a day with the Light and Standard engines, plus one AI score check a day. A free account raises the daily limit to 3,000 words. Paid plans add the Deep engine and runs of up to 5,000 words. The Free Plan & Limits page below has every detail.

Write to support@ai-humanizer.dev about the tool, your account or billing, or for press and partnership requests. We usually reply within two business days.