RewriteAI
Rewrite AI text to human — free AI humanizer
Overview
RewriteAI is an AI humanizer built for students, bloggers, marketers, agencies and developers who write with AI but want the result to sound human. You paste AI-generated text — essays, case studies, research papers, articles, emails, cover letters — and RewriteAI rewrites it into natural academic or conversational prose that keeps the original meaning while removing the patterns AI detectors look for.
What makes it different: instead of prompt-engineering ChatGPT or Claude, RewriteAI uses its own model trained on thousands of human-written texts. The result is a deep rewrite, not surface paraphrasing — better readability, plagiarism-free output, multiple result variants to choose from, an academic mode for university-grade detection systems, and content that Google indexes and ranks normally. The site reports a 99% bypass rate on detectors including Turnitin, GPTZero, Originality.ai, Copyleaks, ZeroGPT and Winston AI. 110,000+ users.
AKey features
- Humanizes ChatGPT, Claude, Gemini, DeepSeek, Grok and Copilot output
- Own AI model trained on human-written text (deep rewrite, not paraphrase)
- Academic mode for university-grade detection systems
- Plagiarism-free, SEO-safe output; multiple result variants
- Built-in AI detector and AI writer
- AI watermark remover
- 40+ free writing tools: grammar checker, summarizer, passive-to-active and tone Converters, essay outline / hook / title generators, APA-MLA-Chicago citation generator
- Humanizer REST API for developers
Pricing
Free: 500 words/month, 300 words per input, $0. Basic: 5,000 words/month, 750 per input, $9.99/mo ($5.99/mo billed yearly). Pro: 30,000 words/month, 1,500 per input, $24.99/mo ($14.99/mo yearly) — academic mode, all detectors. Max: 200,000 words/month 3,000 per input, $49.99/mo ($29.99/mo yearly) — priority support. Roughly 40% off on annual billing. No credit card needed for the free plan.
View full pricing on rewriteai.com
Pros & cons
Pros
- Own model rather than a ChatGPT prompt wrapper, so rewrites are structural
- Genuinely free tier with no signup needed to try it
- Academic mode aimed at university detection systems
- 40+ free writing tools bundled in, useful independently of the humanizer
- REST API, so the engine can be embedded in other products
- Multiple output variants per rewrite
Cons
- Free plan is capped at 500 words a month, which is one short essay
- Web-only; no desktop or mobile app
- English-language interface
- Detector bypass rates vary by detector and by how the source text was generated
Frequently asked questions
Yes, there is a permanent free plan with 500 words per month, and no signup is needed to try the humanizer. Paid plans start at $9.99/month.
The site reports a 99% bypass rate against Turnitin, GPTZero, Originality.ai, Copyleaks, ZeroGPT, Winston AI, Scribbr, SafeAssign, Canvas and Chegg.
No. The rewrite preserves the meaning and the argument; what changes is phrasing, sentence structure and rhythm.
Yes — the Humanizer REST API at https://rewriteai.com/humanizer-api lets developers call the same engine used on the site.
Students and academics, bloggers and site owners, SEO and content marketers, agencies and copywriters, authors, job seekers, ESL writers, and developers.
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