Last updated 07-28-2026
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Humanize AI
Humanize AI turns machine-generated drafts into natural-sounding content from one browser-based writing hub. You paste AI copy into the humanizer, pick a tone mode like Academic or Formal, and get rewritten output designed to pass detectors such as GPTZero, Turnitin, and Originality.ai. The same site also runs a paraphraser, plagiarism checker, grammar checker, and essay writer without sending you to separate apps.
Where most AI humanizers stop at rewriting, Humanize AI keeps the full check-and-fix loop on one domain. Its AI detector is free with unlimited scans and cross-checks results against third-party models like Copyleaks and ZeroGPT, then offers a one-click humanize path when text gets flagged. The grammar checker runs on a self-hosted LanguageTool engine rather than routing drafts through another vendor's cloud, which matters if you are polishing client or academic work you do not want logged elsewhere.
Students use it to rework ChatGPT essays before submission, while bloggers and marketers run drafts through the paraphraser or humanizer when they need a different tone without starting over. Paid tiers unlock higher monthly word caps and unlimited per-run lengths, but the free plan still gives you 1,500 humanizer words and access to every tone mode on the homepage editor.
Free plan includes 1,500 humanizer words with a 300-word cap per run
Ten humanizer tone modes: Free, Standard, Academic, Simple, Flowing, Informal, Formal, Expand, Shorten, and Custom
AI detector offers unlimited free scans and cross-checks against Turnitin, GPTZero, Copyleaks, and Originality.ai
Upload drafts as .txt, .docx, .pdf, or .md files directly into the editor
Lite plan costs $4.99 per month on yearly billing for 10,000 humanizer words and 5,000 paraphraser words
Paraphraser includes seven modes, from Academic and Formal to Expand and Shorten
Grammar checker supports US, UK, Canadian, and Australian English variants
Bundles humanizer, detector, paraphraser, plagiarism checker, and grammar tools on one site.
Free AI detector with unlimited scans and one-click humanize for flagged text.
Ten humanizer tone modes plus seven paraphrase modes cover academic, formal, and casual rewrites.
Self-hosted LanguageTool grammar engine processes text without sending it to third-party AI training pipelines.
Yearly billing cuts paid plans to $4.99, $9.99, and $29.99 per month.
Free tier caps humanizer use at 1,500 words and 300 words per run.
Grammar checker supports English only, while the humanizer handles multiple languages.
Fix All Errors on the grammar checker requires a paid plan.
No dedicated mobile app; browser access only.
Is Humanize AI free to use?
Yes, Humanize AI offers a free tier with 1,500 humanizer words and access to all tone modes on the homepage editor. The AI detector and grammar checker also work without payment. Paid plans add higher monthly word caps, unlimited per-run lengths on Standard and Unlimited tiers, and Fix All Errors on the grammar checker.
What is the Humanize AI free word limit?
Humanize AI free users get 1,500 total humanizer words and can process up to 300 words per run. Paraphrasing without an account caps at 200 words per request, or 400 words with a free account. Paid Lite, Standard, and Unlimited plans raise those monthly limits.
Which AI detectors does Humanize AI target?
Humanize AI humanizer is marketed to bypass GPTZero, Turnitin, Originality.ai, Copyleaks, Crossplag, Sapling.ai, Gowinston.ai, and ZeroGPT. The built-in detector cross-checks flagged text against several of these same services and shows per-model breakdowns for ChatGPT, Claude, Gemini, Grok, and DeepSeek.
Does Humanize AI include a plagiarism checker?
Yes, Humanize AI includes a free plagiarism checker that scans text against academic papers, journals, books, and web pages. Paid subscribers get unlimited plagiarism checks bundled with humanizer and paraphraser access on every plan tier from Lite through Unlimited.
What file formats does Humanize AI accept?
Humanize AI accepts pasted text and file uploads in .txt, .docx, .pdf, and .md formats on the homepage humanizer, detector, and plagiarism checker tools. Use the Upload file button or drag a document into the editor to load it.
How much does Humanize AI cost?
Humanize AI Lite costs $4.99 per month on yearly billing for 10,000 humanizer and 5,000 paraphraser words. Standard is $9.99 per month for 25,000 and 12,500 words. Unlimited is $29.99 per month with no word caps. Monthly billing without the yearly discount lists at $9.99, $19.99, and $59.99.
Does Humanize AI require an account?
No, Humanize AI does not require registration to use the homepage humanizer or the free AI detector. Creating a free account raises paraphrase limits from 200 to 400 words per request and unlocks saved history. Paid tiers require sign-up and checkout through the upgrade page.