Plagly.ai
Free AI detector & plagiarism checker with 99% accuracy — no signup required.
Freemium - Free tier available with no signup required; paid plans available (monthly/annual) with a 30-day money-back guarantee. Limited-time 50% off first month offer advertised.
About Plagly.ai
Plagly.ai is a web-based AI content detector and plagiarism checker that verifies originality with industry-leading accuracy. It detects content from models like ChatGPT, GPT-5.5, Claude and Gemini (claimed 99% accuracy, <0.4% false positives), matches text against a large document corpus (200M+ documents), and provides sentence-level signals, source matches, confidence scores and analytics. Offers a free, no-signup tier for quick checks (up to ~2,500 characters per scan) and paid plans for higher usage and team features.
Key Features
- AI-generated content detection (supports ChatGPT, GPT-5.5, Claude, Gemini) with claimed 99% accuracy
- Plagiarism detection with source matching across a large corpus (200M+ documents)
- Sentence-level signals and confidence scores for detailed analysis
- Free, no-signup web checks (≈2,500 character limit) and paid plans for higher usage and team features
Who is this for?
Students, educators, writers and teams who need to verify content originality and detect AI-generated text
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FreemiumFree tier available with no signup required; paid plans available (monthly/annual) with a 30-day money-back guarantee. Limited-time 50% off first month offer advertised.
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