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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
Tools with a browser extension
Tools that work inside the editor you already use, rather than in their own tab.
What has to be true to appear here
The vendor ships its own extension for at least one major browser.
31 tools meet this criterion.
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StealthGPT
Rewrites AI text and auto-types the result into web fields via a Chrome extension.
AI Detector Bypassers from USD 30.00
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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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Copyleaks AI Content Detector
Enterprise AI and plagiarism detection in one report, with LMS integrations and 30+ language support.
AI Detectors from USD 13.99
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Grammarly AI Detector
Free AI detector from Grammarly returning a percentage AI score, with a Pro agent for flagged phrases.
AI Detectors from USD 12.00
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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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Sapling AI Content Detector
Free AI content detector with sentence-level scores, a Chrome extension and a metered developer API.
AI Detectors from USD 12.00
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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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Conch AI
Rewrite mode that humanizes AI drafts, bundled with an AI detector and study tools.
AI Humanizers from USD 30.00
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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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SupWriter
Humanizes AI text and adds paraphrasing, grammar checking and AI detection.
AI Humanizers from USD 4.99
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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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Walter Writes AI
Humanizes AI drafts, removes model watermarks and scores output with a built-in detector.
AI Humanizers from USD 8.00
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Copyleaks API
Content-integrity API for AI detection and plagiarism scanning, billed in unified credits per scan.
Humanizer APIs from USD 13.99
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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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Grammarly
Writing assistant whose Pro tier rewrites full sentences, adjusts tone and humanizes AI text.
Paraphrasers & Rewriters from USD 12.00
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Linguix
Grammar and style checker with paraphrasing, rewriting and tone suggestions in a browser extension.
Paraphrasers & Rewriters from USD 11.67
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Outwrite
Grammar and style tool whose Pro plan rewrites sentences to be shorter, longer or different.
Paraphrasers & Rewriters from USD 9.95
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QuillBot
Paraphrasing suite with multiple rewrite modes, grammar checker, summarizer and AI humanizer.
Paraphrasers & Rewriters from USD 8.33
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Wordtune
AI rewriting assistant that suggests alternative phrasings, shortens or expands sentences inline.
Paraphrasers & Rewriters from USD 4.89
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Grammarly Plagiarism Checker
Plagiarism detection built into Grammarly's writing assistant, included with Pro plans.
Plagiarism & Originality Checkers from USD 12.00
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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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HyperWrite
Personal AI writing assistant with hundreds of tools, including a dedicated AI Humanizer.
Writing Assistants with a Humanize Mode from USD 16.00
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Surfer
SEO content editor and AI writer that offers a free AI Humanizer for AI-generated drafts.
Writing Assistants with a Humanize Mode from USD 49.00
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TextCortex
AI writing assistant and browser copilot with a Humanize AI Text template and public API.
Writing Assistants with a Humanize Mode from USD 29.99
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Honorlock
Online exam proctoring for universities, corporate training and credentialing bodies.
Detection Suites for Institutions Price on request
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Proctorio
Automated remote proctoring and exam security for K-12, higher education and credentialing.
Detection Suites for Institutions Price on request
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Smodin
Text rewriter, AI writer, plagiarism checker and humanizer aimed at students and researchers.
Paraphrasers & Rewriters Freemium
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GPTZero for Education
AI writing detection for schools, with LMS scanning and institution-level analytics dashboards.
Detection Suites for Institutions Price on request