Write, Run,

Learn to solve practical problems with software. Master principles of programming whether you’re an amateur, a student, or a professional.

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Key Features

Hundreds of problems

Hundreds of problems

Codus has a library of hundreds of hand-written problems designed to reinforce programming skills.

Auto-saves as you type

Codus saves your solutions as soon as you write them, so you never lose any work, ever.

Robust solution verification

Codus checks every solution against a thorough set of test cases.

Debugging tools

Codus displays both stdout and stderr after every problem run in order to allow robust debugging.