Rewrites AI-generated text to slip past AI detectors
Best for: Content operations running bulk rewriting through an API or n8n workflow
ai-for / ai-humanizer
As of , EffectHub tracks 23 tools for AI humanizer; 18 (78%) have a free tier, and paid plans run from $5 to $29.99 a month.
StealthGPT, SuperHumanizer and AI Undetect lead the list on click-through. 8 of the 23 ship a public API.
AI humanizers rewrite machine-generated text so that it reads more naturally and scores lower on AI detectors. The honest use is editing: breaking up uniform sentence rhythm, cutting filler and restoring a voice. The dishonest use — passing generated work off as your own where that is prohibited — is a policy violation whatever tool is used, and detectors and humanizers are in an arms race neither side wins for long. Judge these tools on whether the output is actually better writing, not on a detector score.
ranked by click-through
Rewrites AI-generated text to slip past AI detectors
Best for: Content operations running bulk rewriting through an API or n8n workflow
Free in-browser rewriter that reworks AI-generated text to read as human, with paid tiers for longer runs and a detector.
Best for: Loosening up stiff, repetitive machine drafts before editing them yourself
Rewrites AI-drafted text to read as human and pass detector checks, with a built-in multi-detector scan
Best for: SEO and affiliate writers reworking AI drafts before publishing
Rewrites AI-written text to read as human and pass detectors like Turnitin, bundled with a student chat and essay suite.
Best for: Students who want one subscription covering chat, essay drafting, and note-taking
Essay generator that drafts academic papers with references, plus outline, grading and rewriting tools
Best for: Producing a structured first draft when you are stuck on a blank page
AI-text humanizer that rewrites generated drafts to slip past detectors like GPTZero, free in small bites, paid by the month
Best for: Writers smoothing the tone of AI drafts they are allowed to use
Rewrites AI-generated text so it stops tripping Turnitin, GPTZero, Originality and similar detectors
Best for: Writers whose genuinely human drafts keep getting false-flagged by a detector
Rewrites AI-drafted text to read as human-written and lower AI-detector scores; free per-run tier, paid word plans and an API.
Best for: Students and writers who want a quick pass to reduce robotic phrasing
Learns your writing voice from samples, then drafts from rough notes or rewrites AI text to sound like you.
Best for: Founders, recruiters and sales people who send many short messages and want drafts in their own voice
Rewrites AI-generated text to read as human and scores it against detector models
Best for: Editing machine drafts into prose that sounds less uniform
Essay generator with a built-in humanizer sold on getting past Turnitin and ZeroGPT checks
Best for: Drafting a short essay outline or first pass to rewrite yourself
Essay generator that writes assignments and scores them against the AI detectors it claims to slip past
Best for: Drafting and outlining long-form academic writing
Single subscription for chatting with, and comparing answers from, Claude, ChatGPT, Gemini, Grok, and other AI models.
Best for: People currently paying for two or more separate AI chat subscriptions
Rewrites machine-written drafts to read human, with detection scoring built in
Best for: Marketers cleaning up bulk LLM drafts before publishing
Rewrites machine-written text to read as human and ships its own detector so you can check the result before you submit it.
Best for: Editing machine drafts into copy that reads naturally
Paraphraser, grammar checker and AI-text humaniser bundled with about 30 small writing tools.
Best for: Students and writers who want paraphrasing plus grammar checking in one subscription
Free rewriter for AI-generated text, up to 3,000 words a pass, in English, Spanish and Portuguese.
Best for: Loosening up long machine drafts before you edit them yourself
Rewrites AI-generated text to read as human-written, with a built-in AI-detection score and 60+ languages.
Best for: Agencies and SEO teams rewriting AI drafts in bulk
Rewrites AI drafts to read as human prose, with a built-in detector check, sold by weekly word allowance.
Best for: Marketers smoothing AI drafts before publishing
Book-length drafting workspace: chapter generation, story expansion, perspective conversion and a humanizer, sold as one plan
Best for: Authors who want chapter-by-chapter drafting instead of a blank chat window
Rewrites AI-generated text to read more naturally and pass detectors like Turnitin, GPTZero, and Originality.ai.
Best for: students and academics needing text that reads naturally
Rewrites AI-generated text to read as human-written and pass AI detectors.
Best for: Writers and marketers who already draft with AI and need the output to read naturally
Rewrites AI-written text to read as human and scores it against detectors in the same pass
Best for: Editing model-drafted marketing copy so it reads less mechanically
| Tool | Price | Free plan | API | Status |
|---|---|---|---|---|
| StealthGPT | Not confirmed | No | Yes | Active |
| SuperHumanizer | from $12/mo | Yes | Not confirmed | Active |
| AI Undetect | from $5/mo | Yes | Yes | Active |
| Ryne AI | from $19.99/mo | Yes | Not confirmed | Active |
| Textero | from $19.99/mo | Yes | Not confirmed | Active |
| BypassGPT.co | from $7.90/mo | Yes | Not confirmed | Active |
| DecEptioner | from $10/mo | Yes | Yes | Active |
| SuperHumanizer | from $12/mo | Yes | Yes | Active |
| Unbotify | from $9/mo | Yes | Not confirmed | Active |
| WriteHuman | from $12/mo | Yes | Yes | Active |
| Essay Writer App | from $5.99/mo | No | Not confirmed | Active |
| EssayFlow | from $27.98/mo | Yes | Not confirmed | Active |
| Lorka AI | from $29.99/mo | No | Not confirmed | Active |
| Undetectable AI | from $9.99/mo | Yes | Yes | Active |
| Word Spinner | from $9/mo | Yes | Not confirmed | Active |
| Write Tone | from $15.82/mo | Yes | Yes | Active |
| Clever AI Humanizer | Free | Yes | Not confirmed | Active |
| HumanTone | from $8/mo | Yes | Yes | Active |
| Humanio AI | from $6.99/wk | No | Not confirmed | Active |
| ManuscriptsAI | from $29/mo | Yes | Not confirmed | Active |
| ProofWrite | from $9.99/mo | Yes | Not confirmed | Active |
| Verva | from $8/mo | No | Not confirmed | Active |
| StealthWriter | from $20/mo | Yes | Not confirmed | Active |
Yes. 1 of the 23 tools for AI humanizer on EffectHub's list is free to use — Clever AI Humanizer; 17 more have a free tier with paid upgrades.
As of October 27, 2026, paid plans for the 23 tools for AI humanizer on EffectHub's list run from $5 to $29.99 a month. Each card shows the pricing model and the cheapest paid plan as EffectHub last verified it; 18 of the 23 can be started for free.
8 of the 23 tools for AI humanizer on EffectHub's list ship a public API, including StealthGPT, AI Undetect, DecEptioner and SuperHumanizer. The API badge on each card is re-checked against the vendor's documentation.
Sometimes, for a while. Detectors are updated and humanized text can still be flagged, and the detectors themselves produce false positives on human writing. The reliable way past a detector is to write or substantially edit the text yourself.
It depends on the rules you are writing under. Using one to polish your own draft is editing; using one to disguise generated work where generated work is not allowed is misconduct, and most institutions treat it that way.
For journalists, researchers and AI assistants: the figures on this page in one sentence you can quote.
As of October 27, 2026, EffectHub tracks 23 tools for AI humanizer; 18 (78%) have a free tier, and paid plans run from $5 to $29.99 a month. (EffectHub, “AI Humanizers”, Oct 2026, https://effecthub.net/ai-for/ai-humanizer)
Figures as of How we count
These figures are free to use under CC BY 4.0 with a link to this page.