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GPTHuman AI
AI humanizer with per-output word caps, watermark removal for ChatGPT and Claude, and a humanizer API.
AI Detector Bypassers from USD 8.25
Tools with a free tier worth using
Tools whose free allowance is large enough to judge the output, not just to see a teaser.
What has to be true to appear here
The free allowance stated by the vendor is at least 250 words per use or per month.
28 tools meet this criterion.
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Netus AI
AI Bypasser that rewrites AI text, plus paraphraser, summarizer and unlimited AI detection.
AI Detector Bypassers from USD 14.00
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WriteHuman
Rewrites AI text into human-style output with multiple variations per request and AI detection checks.
AI Detector Bypassers from USD 20.00
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Originality.ai
AI detection plus plagiarism, fact and readability checks aimed at web publishers and content agencies.
AI Detectors from USD 12.95
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Pangram Labs
Research-led AI text detector for schools and platforms, with a free daily quota and a usage-based API.
AI Detectors from USD 20.00
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QuillBot AI Detector
Free AI detector inside QuillBot's writing suite, with sentence highlights and a 1,200-word free scan.
AI Detectors from USD 8.33
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Scribbr AI Detector
Free student-facing AI detector with paragraph-level feedback and a paid premium GPT-4-capable tier.
AI Detectors from USD 19.95
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Winston AI
AI text, image and deepfake detection with plagiarism checking and site certification for publishers.
AI Detectors from USD 10.00
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AIHumanize.io
Rewrites AI text in several styles, locks keywords and citations, and runs AI detection checks.
AI Humanizers from USD 15.00
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Hastewire
Humanizes AI drafts and adds sentence-level AI detection, grammar checking and translation.
AI Humanizers from USD 5.00
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Ryne AI
Humanizes AI text and adds an AI detector, essay writer and lecture note tools.
AI Humanizers from USD 19.99
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StealthWriter
Rewrites AI text with Ghost models, sentence-level alternatives and a built-in AI scanner.
AI Humanizers from USD 20.00
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Surfer AI Humanizer
Free web tool that rewrites AI-generated English text into human-style prose.
AI Humanizers from USD 49.00
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Undetectable AI
Rewrites AI-generated text into human-style output and includes a built-in AI detector.
AI Humanizers from USD 9.99
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Originality.AI API
AI detection and plagiarism API billed in credits, where one credit covers 100 words of scanned text.
Humanizer APIs from USD 12.95
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Undetectable AI API
Developer API for text humanization and AI detection, billed from the same word-credit balance as the web app.
Humanizer APIs from USD 9.99
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Winston AI API
Credit-based API for AI text, image and plagiarism detection, with a starter kit and REST reference docs.
Humanizer APIs from USD 10.00
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AI Undetect
Rewrites AI-generated content into human-style text and includes an AI detector.
Multilingual Humanizers from USD 5.00
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iLoveNote (formerly EditPad)
Free online paraphrasing tool, rebranded from EditPad, allowing 1,000 words per rewrite.
Paraphrasers & Rewriters from USD 6.58
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Paraphraser.io
Online paraphrasing tool with five rewrite modes and a 600-word free limit per submission.
Paraphrasers & Rewriters from USD 4.55
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Plagiarism Detector
Online plagiarism checker with a free tier, paid word packages and a developer API.
Plagiarism & Originality Checkers from USD 20.00
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Quetext
DeepSearch plagiarism checker with AI detection, citation assistant and bulk uploads.
Plagiarism & Originality Checkers from USD 14.99
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KoalaWriter
SEO article generator billed in words and credits, bundled with chat, image and internal-linking tools.
SEO & Marketing Content from USD 25.00
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Koala AI
SEO article writer and chatbot that ships a free AI-to-human text converter among its tools.
Writing Assistants with a Humanize Mode from USD 20.00
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Humbot
Humanizes AI text in three modes and checks the result with an integrated AI detector.
AI Humanizers Freemium
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Samwell AI
Academic drafting tool that generates cited papers, checks plagiarism and offers a humanization feature.
Academic & Student Tools Freemium
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UnAIMyText
Free humanizer allowing 500 words per input without an account, plus a Pro tier with a 2,000-word input cap.
AI Detector Bypassers Freemium
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JustDone AI Detector
AI detector in JustDone's student toolkit, publishing its own error rate and estimating Turnitin scores.
AI Detectors Freemium