Updated November 8, 2026. Every feature, limit and price below was read on the vendor's own page on November 8, 2026.
| Rank | Tool | One published number | Best for |
|---|---|---|---|
| 1 |  Grammarly AI Humanizer |
6 languages with a free account | Most people who want a careful, free rewrite |
| 2 |  QuillBot AI Humanizer |
125 words per free run | Short emails, posts and paragraphs |
| 3 | ChatGPT HumanizerChatGPT Humanizer (this site's box) | 20 to 1,000 words per run, no signup | Pasting a full ChatGPT draft without an account |
| 4 |  Walter Writes |
Up to 2,000 words per request on Elite and Teams | Long documents and writing in many languages |
| 5 |  Undetectable AI |
10,000 characters per free run | Long drafts on a free tier, with purpose and reading level settings |
| 6 |  NaturalWrite |
300 free words to start | Trying several writing tools from one balance |
| 7 |  StealthGPT |
1,000 words per request on Pro | Uploading whole documents on a paid plan |
| 8 |  Humbot |
500 to 1,200 word input limits on limited plans | People who also want study tools in the same account |
| 9 |  BypassGPT |
80 words per free input | A quick look at a very short passage |
Every number in this table is sourced in the field table and the tool sections below.
Which ChatGPT humanizer should you choose?
Start from the job in front of you, not the brand.
- Choose Grammarly's AI Humanizer if you want a free rewrite from an established writing company that tells you plainly it is not built to get around detectors.
- Choose QuillBot if your drafts are short and you already use its paraphraser or grammar checker.
- Choose our free ChatGPT rewrite box if you want to paste up to 1,000 words at once without making an account, and three tones are enough.
- Choose Walter Writes if you work on long documents, need a language other than English, or want voice matching.
- Choose Undetectable AI if you need settings for purpose (essay, article, story) and reading level.
- Skip the detector promises. Several tools on this list advertise detector results. We list those claims because they are part of what the vendors sell, but we don't rank on them.
How we ranked these 9 tools
We chose nine humanizers that publish enough about themselves on their own pages to compare. We read each vendor's official pages on November 8, 2026 and recorded the same fields for every tool. We confirmed each official domain before citing it.
We ranked on four published criteria, in this order of weight:
- How the vendor frames the tool. A tool sold as an editing aid ranks above one sold mainly on detector results, because no rewrite tool can honestly promise a detector score.
- Free access. Whether you can run a ChatGPT draft without paying, whether you need an account, and how many words a free run takes.
- Published limits and price. Words per run and the lowest paid plan, with billing period and currency, as the vendor publishes them. A field the vendor doesn't publish counts against clarity.
- Controls. Tones or modes, and languages.
The full method on how we test humanizers runs every tool on the same three sample drafts (a short essay paragraph, a work email and a product description) and checks meaning kept and readability. This ranking weighs published features and limits only, and nothing here describes how any tool's output reads.
Our own box is listed on the same fields as every other tool. It is not ranked first by default, and it gets no field the others lack.
Every tool on the same fields
Prices marked with a dollar sign but no currency code are shown that way on the vendor's page. All pages were read on November 8, 2026.
| Tool | Free use | Signup for free use | Words per run | Tones or modes | Languages | Lowest paid price listed | Vendor's detector claim | Source |
|---|---|---|---|---|---|---|---|---|
| Grammarly AI Humanizer |
Yes, basic | No for the page tool; yes for styles | Not published | 4 preset styles plus a custom voice (free account) | 6 | Pro US$12 (billing period not shown in page text) | Says the tool is not intended to get around detectors | Humanizer page, plans |
| QuillBot AI Humanizer |
Yes, Basic mode | Not stated | 125 free; no limit on Premium | Basic and Advanced | 5 | US$8.33 a month, billed annually | No detector promise; points to its integrity page | Humanizer page, Premium |
| ChatGPT HumanizerChatGPT Humanizer (this site) | Yes | No | 20 to 1,000 | Casual, Professional, Academic | Not specified | No paid plan listed | None; says it cannot promise detector scores | Our box |
| Walter Writes |
Not confirmed for this page | Not confirmed for this page | 750 (Starter), 1,500 (Pro), 2,000 (Elite, Teams) | Voice matching | 80+ | Four plans; prices on the vendor's pricing page | Says no detector, its own included, can guarantee full accuracy | Vendor pricing page, as recorded October 21, 2026 |
| Undetectable AI |
Yes, basic model | No | 10,000 characters; free trial capped at 250 words | Basic and Stealth; 5 purposes; reading levels | 50+ | $5.00 a month billed annually ($60); $9.99 also shown | Says output scores as human; offers a refund if flagged | Humanizer page, pricing |
| NaturalWrite |
300 words to start | Account for the free words | Not published | Multilingual model; Advanced model on Pro | 50+ | $4.99 a month billed annually ($59.88); $9.99 also shown | Plan list names detectors; FAQ says no guarantee | Home, pricing |
| StealthGPT |
Up to 100 words on desktop | Not stated | 1,000 (Pro), 2,000 (Max) | Super, Standard, Lite | 100+ in plan table; 50+ elsewhere | $1 for 3 days, then $29.99 a month | Says it beats AI detectors | Humanizer page, pricing |
| Humbot |
Free plan (allowance not shown) | Not stated | 500, 1,200 or unlimited by plan | Quick, Enhanced, Advanced | 50+ | Not published in the page text | Says output works with named detectors | Humanize page, pricing |
| BypassGPT |
150 words a month | Not stated | 80 on the free plan | Fast, Creative, Enhanced | 50+ | Not published in the page text | Promises full human scores on detectors | Home, pricing |
The tools, one by one
- Grammarly AI Humanizer: best free all-rounder
Best for: students and professionals who want a free rewrite plus disclosure tools.
- Main limitation
- Grammarly doesn't publish a word limit for the free page tool, and the four styles, custom voice and six languages need a free account.
- Published limits and price
- Grammarly's AI Humanizer page says the tool on the page is free and offers basic humanization, while a free account adds four voices, a custom voice profile and six languages (English, Spanish, French, German, Portuguese, Italian). The Grammarly plans page lists Pro at US$12; the page text we read did not show the billing period.
- Vendor's detector claim
- Grammarly says the tool is not intended as a way around AI detectors, and encourages users to acknowledge AI help.
The safest first stop for a ChatGPT draft, from a writing company that frames the tool as an editing aid.
Grammarly Humanizer alternative for ChatGPT drafts →
- QuillBot AI Humanizer: best for short pieces
Best for: emails, social posts and single paragraphs.
- Main limitation
- the free Basic mode stops at 125 words per run, which is short for most ChatGPT drafts.
- Published limits and price
- QuillBot's AI Humanizer page lists a 125-word free limit in Basic mode and no word limit on Premium, with Advanced mode reserved for Premium. Its Premium page lists US$8.33 a month billed annually and three free uses of Advanced mode. QuillBot says it offers a 3-day money-back guarantee.
- Vendor's detector claim
- none. QuillBot asks users to follow their institution's AI guidelines.
A clear free tier with a published cap, and a cheap upgrade if you already use QuillBot.
QuillBot AI Humanizer alternative →
- ChatGPT Humanizer: best for pasting a whole draft with no account
Best for: a ChatGPT draft of up to 1,000 words that needs a Casual, Professional or Academic pass.
- Main limitation
- three tones and no custom voice, a cap of 5 runs a minute and 20 a day per connection, and no language list.
- Published limits and price
- our box takes 20 to 1,000 words per run, free, with no account. There is no paid plan listed.
- Vendor's detector claim
- none. We say plainly that no rewrite tool can promise a detector score.
A free run of up to 1,000 words with no signup, framed as an editing aid.
It sits third because Grammarly and QuillBot offer more controls and more languages, not because of any test result.
- Walter Writes: best for long documents and many languages
Best for: reports, thesis chapters and non-English writing.
- Main limitation
- prices are not listed on this page and we could not confirm a free tier, so check the vendor's pricing page first.
- Published limits and price
- Walter Writes allows 750 words per request on Starter, 1,500 on Pro and 2,000 on Elite and Teams. It supports over 80 languages for humanizing and detecting AI text. Its Teams plan supports up to 10 members with a shared pool of 500,000 words per month. Every plan includes voice matching and a built-in AI detector.
- Vendor's detector claim
- Walter Writes states that no AI detector, including its own, can guarantee 100% accuracy.
A paid humanizer with per-request limits up to 2,000 words, voice matching and a built-in detector.
- Undetectable AI: best free tier for long drafts
Best for: long drafts where you want purpose settings (General Writing, Essay, Article, Marketing Material, Story).
- Main limitation
- the vendor's own FAQ says the free version uses a basic model that "may be flagged by detectors", and the framing is built around detector scores rather than writing quality.
- Published limits and price
- the Undetectable AI humanizer page says it handles up to 10,000 characters in one go and lists more than 50 languages, with English as its main focus. Its pricing page lists 10,000 words a month at $5.00 a month billed annually ($60), with a $9.99 figure also shown, and says the free trial is limited to 250 words.
- Vendor's detector claim
- the vendor says its output scores as human in detectors and offers a refund if humanized text is flagged.
A large free run, measured in characters rather than words, sold mainly on detector scores.
Undetectable AI alternative →
- NaturalWrite: best for a small free balance across several tools
Best for: people who also want a paraphraser, grammar checker and citation checker.
- Main limitation
- no published words-per-run limit, and its own pages pull in two directions on detectors.
- Published limits and price
- NaturalWrite's home page says you get 300 free words with no credit card and claims support for 50+ languages through a Multilingual model. Its pricing page lists Basic at $4.99 a month billed annually ($59.88) for 5,000 words a month, with a $9.99 figure also shown.
- Vendor's detector claim
- the pricing page lists named detectors among plan features, while the FAQ says NaturalWrite cannot guarantee any output will get past third-party detectors.
A low annual price and one word balance shared across five writing tools.
NaturalWrite alternative →
- StealthGPT: best for whole-document uploads on a paid plan
Best for: longer papers on a paid plan.
- Main limitation
- the free taste is 100 words on desktop, and Pro moves to $29.99 a month after a $1 three-day trial.
- Published limits and price
- StealthGPT's pricing page lists Pro at 50,000 words a month and 1,000 words per request, and Max at 2,000 words per request. Its humanizer page names three models (Super, Standard, Lite) and up to 100 free words on the desktop homepage.
- Vendor's detector claim
- StealthGPT's pricing page says "We beat every AI Detector" and cites its own study and a third-party ranking.
A paid workspace with three rewrite models and document upload.
StealthGPT alternative →
- Humbot: best if you also want study tools
Best for: students who also use quiz, summary and citation tools.
- Main limitation
- prices are not published in readable page text, and the free plan's word allowance isn't stated.
- Published limits and price
- Humbot's pricing page lists humanizer input limits of 500 words, 1,200 words or unlimited by plan, three modes (Quick, Enhanced, Advanced) and a 30-day money back guarantee. Its home page says it supports 50+ languages.
- Vendor's detector claim
- Humbot says its rewrites pass named detectors.
A humanizer inside a bigger study suite, with prices that did not appear in the page text we read.
Humbot alternative →
- BypassGPT: best only for a quick look
Best for: testing a sentence or two.
- Main limitation
- 80 words per free input and 150 free words a month.
- Published limits and price
- BypassGPT's pricing page lists the free plan at 150 words a month, 80 words per input, with Fast, Creative and Enhanced modes. Paid prices did not appear in the page text. Its home page says it rewrites in over 50 languages.
- Vendor's detector claim
- the brand is built on detector results and promises full human scores.
The smallest free allowance on this list, and the most detector-focused pitch.
BypassGPT alternative →Why do humanizer rankings disagree?
Rankings elsewhere often differ from this one because many rank tools on detector scores rather than on published features. Two vendors here cite results of that kind: StealthGPT links its own study and a third-party ranking on its humanizer page, and Undetectable AI shows sample detector percentages on its humanizer page. Detectors change, drafts differ, and a score from one detector on one day says little about the next.
This page ranks on what each vendor publishes about itself, which you can check today by opening the source links.
No humanizer can promise how a detector will score your text, and none of the tools here can make AI use acceptable where your school or employer forbids it.
What to check before you pay for any humanizer
- Run a real draft on the free tier, then read the result against your original for names, numbers and dates.
- Check whether the word limit is per run or per month. Vendors publish both, and they are easy to mix up.
- Note the billing period. Several prices above are monthly rates billed once a year.
- Read the refund terms on the vendor's own page.
- Check your course or workplace rules on AI use, and disclose when they ask you to.
If you're still deciding whether you need a tool at all, our guide on whether ChatGPT can humanize its own text explains what a rewrite prompt can and can't do.
Sources
- Grammarly AI Humanizer, grammarly.com, read November 8, 2026
- Grammarly plans, grammarly.com, read November 8, 2026
- QuillBot AI Humanizer, quillbot.com, read November 8, 2026
- QuillBot Premium, quillbot.com, read November 8, 2026
- Undetectable AI humanizer, undetectable.ai, read November 8, 2026
- Undetectable AI pricing, undetectable.ai, read November 8, 2026
- NaturalWrite home and FAQ, naturalwrite.com, read November 8, 2026
- NaturalWrite pricing, naturalwrite.com, read November 8, 2026
- StealthGPT AI humanizer, stealthgpt.ai, read November 8, 2026
- StealthGPT pricing, stealthgpt.ai, read November 8, 2026
- Humbot humanizer, humbot.ai, read November 8, 2026
- Humbot pricing, humbot.ai, read November 8, 2026
- BypassGPT home, bypassgpt.ai, read November 8, 2026
- BypassGPT pricing, bypassgpt.ai, read November 8, 2026
- Walter Writes plan limits, languages and features: the vendor's pricing and home pages, as recorded October 21, 2026
About the author
The ChatGPT Humanizer editors write and review the guides, run the tool comparisons to the published method, and look after the corrections inbox.
