Built by a student, for students.

Computus started with a simple frustration: the best math tools were locked behind paywalls, accounts, and installs. So a student built his own — with a coding agent as a pair-programmer — and kept going until there were more than 150 tools: graphing, symbolic calculus, 3D surfaces, physics labs, circuit simulators, an AI assistant, and more.

What we believe

Learning tools should be free. Every tool works without an account, runs in your browser, and keeps your work on your device.

Students teach each other best. The forum, weekly challenges, and the function marketplace let learners help — and build for — each other.

Curiosity compounds. Many tools hide delightful corners. Explore, and share what you find.

What's next

More tools, more challenges, more student-built functions. If Computus helped you, the kindest thing you can do is share it with a classmate — or buy us a coffee to keep the servers running.