Open Source coding interview prep tool with AI interviewer
CodePrep helps you practice coding interviews in a way that actually feels useful. Instead of grinding random problems, you can talk through solutions, write code, get tested, ask for hints, and receive clear feedback on what to improve. It includes voice mode, built-in code execution, study mode, and progress tracking, so you can practice like a real interview and get better faster.
Built this for a few friends who were prepping for coding interviews and kept saying the same thing: most prep tools help you solve problems, but not actually practice interviewing.
So I made CodePrep to feel a lot closer to the real thing. You can talk through your solution, write code, get tested, ask for hints, and get feedback that’s actually useful afterward.
The fun part: this was built entirely with AI agents. That made it possible to move fast, experiment a lot, and turn an idea that started as “this would be useful for my friends” into a real product.
Would love to hear what you think:
does this feel more useful than the usual coding prep flow?
what would make you actually come back and use it regularly?