PaperCheck is an independent tool that checks a report or thesis for AI-written text and plagiarism in one report. Students at University of Calcutta in Kolkata, West Bengal can use it free for 5 checks of up to 20,000 words each. It is not connected to Calcutta University.
Written by Adithyan, a student who builds PaperCheck. Last updated 3 November 2026.
Typical documents are dissertations, M.Phil and PhD theses, project work and term papers. PaperCheck reads Word and PDF files, skips the certificate, declaration, acknowledgement, tables and references, and scores the running text.
It gives an estimate from our own detector. On our own test of 1,378 papers it caught 97.7% of AI-written papers and wrongly flagged 0.43% of human-written ones (2 of 469). That test is ours, not independently validated, and it is for whole papers: short essays score much lower. It cannot predict the number your Calcutta University checker will show.
More colleges: East and North-East India and all Indian colleges.
Yes. After Google sign-in you get 5 free checks of up to 20,000 words each. The reducer is optional and costs Rs 49.
Not necessarily. Detectors disagree, and Calcutta University or your department decides which one counts. Use PaperCheck as an early estimate.
No. PaperCheck is independent and is not affiliated with University of Calcutta.
Check your paper: 5 free checks
PaperCheck is independent and not affiliated with University of Calcutta, Turnitin, GPTZero or Pangram. Scores from any detector are estimates, not proof, and your institution's own checker is the one that counts.