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PaperCheck
Check full research papers for AI writing and plagiarism
Most AI detectors check a few hundred words and give one number. PaperCheck checks a whole thesis or project report (Word/PDF, up to 20,000 words) and marks exactly which lines read as AI-written and why. It also checks copied phrases against the arXiv papers you cite. Tested on held-out human writing so honest students aren't falsely flagged. 5 free checks a month. Works inside Claude and ChatGPT via MCP. Scores are estimates, not proof.
Hi everyone, I'm Adithyan, a CS student.
Every semester my friends paste their reports into three free AI detectors and get 3%, 40% and 70%. Nobody knows which to believe.
So I built PaperCheck to do one honest job: check the whole paper, show exactly which lines look AI-written and why, and check copied phrases against arXiv papers before you submit.
In its first week it ran 1,000+ checks and 10M+ words, mostly from students checking final-year reports. The full engineering story (what broke, how the detector was trained, the cloud bills) is here: https://paper-check.me/engineering
You get 5 free checks a month. I'd love your feedback, especially on wrong flags.
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About PaperCheck on Product Hunt
“Check full research papers for AI writing and plagiarism”
PaperCheck was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #327 on the daily leaderboard. Most AI detectors check a few hundred words and give one number. PaperCheck checks a whole thesis or project report (Word/PDF, up to 20,000 words) and marks exactly which lines read as AI-written and why. It also checks copied phrases against the arXiv papers you cite. Tested on held-out human writing so honest students aren't falsely flagged. 5 free checks a month. Works inside Claude and ChatGPT via MCP. Scores are estimates, not proof.
PaperCheck was featured in Writing (59.5k followers), Education (79.5k followers) and Artificial Intelligence (483.5k followers) on Product Hunt. Together, these topics include over 188.2k products, making this a competitive space to launch in.
Who hunted PaperCheck?
PaperCheck was hunted by Adithyan ajish. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Adithyan ajish