Best AI Humanizer in 2026: 9 Top Picks Compared

The best AI humanizer in 2026 is Essai. It is built to keep your meaning while making AI-assisted drafts read like a person wrote them, you can start free on up to 125 words per request with no signup or credit card, and a free AI detector in the same app lets you check every draft.

Below, we rank nine AI humanizers on price, free access, usage limits, features and public user feedback, with prices as of October 2026. QuillBot, Phrasly and Undetectable AI round out the top four, and each section explains where the alternatives fall short of our top pick.

The best AI humanizer tools in 2026, ranked

How we ranked them

We ranked each AI humanizer on price, free access, usage limits, features and public user feedback. Prices, limits and features come from each vendor's own pricing pages, product pages and terms as of October 2026, and user feedback comes from public review profiles such as Trustpilot. Billing terms count too: a low price is worth less when a trial converts into a full plan or refunds are hard to get.

Essai earned the top spot for the combination that matters most to students and writers: a free tier that asks for no card, a humanizer designed to keep your meaning, and a free AI detector in the same app.

The 9 best AI humanizers in detail

1. Essai: best AI humanizer overall

Best for: students, writers and marketers who want AI-assisted drafts to read naturally without changing what they say, and who want to check the result before they submit or publish.

Essai is a web app with two tools: an AI humanizer on the home page and a free AI detector. The humanizer is designed to keep your meaning while making phrasing, rhythm and word choice read naturally, so AI-assisted text reads as human-written. It is also designed to help text pass popular AI detectors. You can start free on up to 125 words per request, with no signup and no credit card.

The detector returns an AI probability score from 0 to 100 and works best on 150+ words. It is free to use, and a free account adds detailed reports and unlimited scans. Because both tools live in the same place, you can humanize a draft, check it and revise any passage that still sounds generic without switching apps.

Essai's paid plans as of October 2026 (yearly billing saves about 30 percent):

Every paid plan includes unlimited AI detection, and Ultra adds priority support. Full details are on the Essai pricing page.

Pros

• Free to start: up to 125 words per request with no signup and no credit card.
• Humanizer and AI detector in one workflow, so you can rewrite and check a draft without switching tools.

Cons

• Free requests top out at 125 words, so longer drafts go in chunks or on a paid plan.
• It focuses on humanizing and detection, so you will not find a plagiarism checker or a browser extension.

2. QuillBot

Best for: students who want a paraphraser, grammar checker and plagiarism checker in the same subscription.

QuillBot began as a paraphrasing tool and now bundles a grammar checker, AI detector, AI humanizer, plagiarism checker and summarizer. Its humanizer offers Standard, Academic, Professional and Casual modes and works in five languages. The free plan humanizes up to 100 words with limited usage, while Premium removes the cap for $19.95 a month or $99.95 a year ($8.33 a month), as of October 2026. QuillBot is clear about the tool's goal: its humanizer page says it "isn't a tool for evading AI detection."

Pros

• One plan covers paraphrasing, grammar, plagiarism checks, AI detection and humanizing.
• Four rewrite modes, including an Academic mode.

Cons

• The free humanizer stops at 100 words, QuillBot's help center says the humanizer does not try to trick AI detectors, and some Trustpilot reviewers say humanized text was still flagged.
• Recent one-star reviews center on auto-renewal charges and refused refunds, and QuillBot's Trust Center says user inputs are used to train its services.

Read our full QuillBot review.

3. Phrasly

Best for: heavy users who humanize long documents every week and are happy to pay for a year up front.

Phrasly is an AI humanizer with a free AI detector, a plagiarism checker and a content generator. Its newest humanizer model, Phrasly Ultra, launched on September 15, 2026, with five rewrite modes from Gentle to Max. Guests get one free run a day of 15 to 500 words. The cheapest paid option is 3-day access for $2.00, and the Unlimited plan is listed at $10.99 a month billed annually, with unlimited humanizations and up to 5,000 words per process, as of October 2026.

Pros

• Unlimited humanizations on the Unlimited plan, with up to 5,000 words per process.
• A free AI detector that needs no account.

Cons

• The $2.00 trial becomes a full subscription unless you cancel at least 30 minutes before the charge, refunds cover only a first payment on an account with zero usage, and recent one-star Trustpilot reviews focus on trial conversions, renewal charges and refused refunds.
• "Unlimited" comes with a fair-use rule: after 50 Ultra documents in a day, Phrasly may route later requests to its "Latest" model during peak demand. Its humanizer benchmark was also run by Phrasly itself.

Read our full Phrasly AI review.

4. Undetectable AI

Best for: high-volume users who are comfortable committing to a yearly plan.

Undetectable AI is an AI humanizer with three models (Basic, Stealth and Undetectable), a free AI detector, a Chrome extension and an API. One humanizer run handles up to 10,000 characters, and you can pick a purpose and a readability level. The free version uses the Basic model, which the company itself says "may be flagged by detectors." The stronger Undetectable model needs a paid plan or a 3-day trial that comes only with yearly plans and is capped at 250 words. Prices start at $5 a month billed yearly ($60 for 10,000 words a month) or $19 a month on monthly billing, as of October 2026.

Pros

• Every plan lists the same features, so you only choose a word allowance.
• A free AI detector with no signup and up to 10,000 words per check.

Cons

• Strict billing: refunds are narrow, most users must cancel by email, and unused words disappear the moment you cancel.
• A 3.5 TrustScore from 998 Trustpilot reviews as of October 2026, with 40 percent of reviews at one star and recent complaints about charges after cancelling and trials billed as a full year.

Read our full Undetectable AI review.

5. Grammarly

Best for: writers who already pay for Grammarly and want a quick rewrite in the same account.

Grammarly, the writing assistant from the company now called Superhuman, offers basic humanizing for free on its AI humanizer page, and a free account adds a Humanizer agent with four preset voices and custom voice profiles built from a writing sample of 200 words or more. Paid plans start with Pro at $12 per member a month billed yearly ($144 a year) or $30 billed monthly, as of October 2026. Grammarly says the humanizer "is not intended to bypass AI detectors."

Pros

• Free basic humanizing, plus a free Humanizer agent with four preset voices.
• Custom voice profiles built from your own writing sample.

Cons

• Grammarly's own AI detector guide warns that Humanizer rewrites will likely be flagged as AI.
• Pro costs $30 a month on monthly billing, the setting that lets Grammarly train on your content is on by default for individual accounts, and its Trustpilot profile shows 3.1 from 10,478 reviews, with complaints about unexpected subscription charges.

Read our Grammarly AI detector review.

6. HumaLingo

Best for: writers who want fine control over purpose and tone and are ready to pay for a year.

HumaLingo, run by Krivis ai, a company registered in Lithuania, pairs an AI humanizer with an AI detector, a plagiarism checker and a paraphraser. The humanizer asks you to choose a purpose (such as inform or persuade), a tone (such as formal or confident) and a creative or technical mode, and optional switches keep citations, change length and add a summary. There is no free plan. The cheapest way in is 7-day access for $2.00, which renews at $39.99 a month unless you cancel at least 24 hours before it ends. Regular plans cost $19.99 a month or $9.99 a month billed yearly, as of October 2026.

Pros

• Detailed purpose, tone and mode controls.
• Extra switches that keep citations and adjust length and formatting.

Cons

• No free plan, and a $2.00 trial that renews at $39.99 a month, $20 more than the regular Monthly plan.
• Its terms describe the services as provided "for entertainment purposes," some Trustpilot reviewers say humanized output still read like AI or turned awkward, and recent one-star reviews cite post-trial charges and refused refunds.

Read our full HumaLingo review.

7. Smodin

Best for: students who want a detector, humanizer, plagiarism checker and AI writer under one subscription.

Smodin is a writing suite whose AI humanizer offers rewrite levels from light to deep and four styles: academic, creative, professional and neutral. A separate AI Detection Remover adds a mode aimed at detectors. Starter costs $12.99 a month or $10 a month billed annually, and Premium costs $19.99 or $16 a month billed annually, as of October 2026. You can try the tools without signing up, but the pricing page lists no free allowances.

Pros

• Many tools for one price, even on Starter.
• Four writing styles and several rewrite strengths.

Cons

• Trustpilot shows Smodin's rating as unavailable due to a breach of its guidelines and says it has removed a number of fake reviews for the company.
• All subscriptions are non-refundable, Starter's writing output is listed only as "Limited," and the humanizer claims conflict: one FAQ answers "Yes" when asked about a guarantee, while the AI Detection Remover FAQ calls removal "about 80% consistent."

Read our full Smodin review.

8. ZeroGPT

Best for: a quick, basic rewrite next to a free AI detector.

ZeroGPT is built around a free AI detector, and its free plan also includes a Basic humanizer with a built-in "Check for AI" button. The humanizer page then promotes an Advanced model that ZeroGPT says is provided by Undetectable AI. Paid plans start at $14.99 a month, or $107.88 a year ($8.99 a month), for US visitors as of October 2026, and the free tier shows ads.

Pros

• A free Basic humanizer with a one-click AI check.
• Plagiarism checks and image and video detection under the same login.

Cons

• ZeroGPT's own terms say it does not guarantee that humanized text will pass ZeroGPT or another detector, and its stronger model comes from another vendor.
• Its unclaimed Trustpilot profile shows 1.2 out of 5 from 111 reviews as of October 2026, some reviewers say the humanizer oversimplified their writing, and refund requests must arrive within 10 hours of a first purchase.

Read our full ZeroGPT review.

9. Isgen

Best for: writers who need to rewrite text in languages other than English.

Isgen is a UK-based AI detector that also sells an AI humanizer. The humanizer rewrites in Basic or Advanced mode with a Formal or Adaptive style and supports more than 60 languages. Free requests are capped at 3,000 characters, within a free tier of 12,000 words a month, and heavier use needs the Writing plan ($25 a month or $180 a year) or Ultimate ($40 a month or $288 a year), as of October 2026.

Pros

• More than 60 humanizer languages.
• Basic and Advanced modes with two writing styles.

Cons

• The Writing plan that covers heavier humanizer use lists no AI detector or plagiarism checker, so paid humanizing and detection come together only on Ultimate.
• Its unclaimed Trustpilot profile shows 2.5 out of 5 from nine reviews, most of them one-star, and refunds require a request within 12 hours of subscribing.

Read our full Isgen AI review.

Essai vs the runner-ups

Here is how Essai compares with the three tools closest to it in our ranking. Prices and limits are as of October 2026.

Essai vs QuillBot. QuillBot is the bigger writing suite, but its humanizer is a side tool that QuillBot itself says is not meant for evading AI detection. Essai's free tier takes 125 words per request against QuillBot's 100, its Basic plan costs $14.99 a month against $19.95 for QuillBot Premium on monthly billing, and a free Essai account gets unlimited detector scans instead of six a day.

Essai vs Phrasly. Phrasly is built for volume, but its terms are strict: the $2.00 trial turns into a full plan unless you cancel in time, and renewals are never refunded. Essai's free tier asks for no card at all, so you can try the humanizer and the detector on your own drafts before you decide whether a paid plan is worth it.

Essai vs Undetectable AI. Undetectable AI's free Basic model is one the company says may be flagged, and its stronger model sits behind a trial tied to a yearly plan. Essai's month-to-month plans start lower ($14.99 versus $19), and the free tier lets you try it without committing to a year.

How to choose an AI humanizer

Whichever tool you consider, these checks separate a humanizer that helps from one that costs you time and money:

• Free access without a card. A free tier you can use right away beats a trial you have to remember to cancel. Essai's humanizer is free on up to 125 words per request with no card, while Phrasly and HumaLingo sell $2.00 trials that roll into full plans unless you cancel in time.
• Words per request. This decides how much of an essay you can rewrite in one pass. Essai lists 500, 1,500 and 3,000 words per request on Basic, Pro and Ultra.
• A detector in the same place. Humanizing is only half the job. Essai's free AI detector gives a 0 to 100 AI probability score, so you can see which drafts still need work.
• Billing terms. Read refund and cancellation rules before you pay. Smodin's subscriptions are non-refundable, ZeroGPT and Isgen give you hours rather than days to ask for a refund, and most Undetectable AI users must cancel by email.
• Public feedback. Look past star averages to recurring complaints. Billing surprises come up again and again in the one-star reviews of several tools on this list.

For the best results, humanize in sections, read every paragraph, add details only you would know, and run the final version through a detector before you submit or publish. If you are writing for a class, check your course's AI rules first. Our step-by-step guide to humanizing a ChatGPT essay draft shows the whole workflow, and our ranking of the best AI detectors covers the checking side.

What Essai users say

Essai users point to the same strengths that put it at the top of this list:

"I've tested many alternatives, but nothing comes close to the quality Essai provides." (Priya Sharma, Essai user)

"The quality of the humanized text is remarkable. Essai preserves my ideas while making everything sound natural. My grades have improved significantly since I started using it." (Michael Foster, Essai user)

Verdict: the best AI humanizer for most people

Essai is our pick for the best AI humanizer in 2026. It is designed to keep your meaning while making phrasing and rhythm read naturally, it is built to help text pass popular AI detectors, and you can start free with no signup or card. The built-in AI detector lets you check every draft before it goes out, and paid plans start at $9.99 a month billed yearly, as of October 2026. QuillBot, Phrasly and Undetectable AI are capable alternatives, but each asks you to accept a trade-off, from a humanizer that is not meant for detectors to trials that convert into paid plans. Humanize your next draft with Essai, then run it through the free AI detector before you hand it in or hit publish.