Codequiry
Codequiry is a tool for detecting plagiarism in source code. It checks student programming assignments against other students' work, repositories on GitHub, posts on Stack Overflow, and more than 2 trillion web sources. The tool supports over 65 programming languages and has integrated detection of code generated by AI, such as ChatGPT, GitHub Copilot, Claude, and other AI tools.
The platform combines several detection systems, including MOSS, JPlag, Dolos, as well as its own Hexagram and Zeus engines, to produce a comprehensive report with line-by-line comparison. There is a free version with restricted web scanning capabilities, paid subscription plans beginning at approximately $28–$29 per month, and API access for corporate integrations. Universities and engineering teams rely on Codequiry for maintaining academic integrity and efficient code review processes.