The coding-interview problems
that actually get asked. Free.
CodeSuite is a curated library of the problems companies really test — organised by pattern so you know what to study, and free to solve right in your browser. When you want to go deeper, hints and Ask Cody step-by-step explanations come with Codeniversity Pro.
The problems that get asked
Curated from the patterns companies actually test — organised so you know exactly what to study, not a random pile of puzzles.
Solve it in the browser
A built-in editor and test runner. Write your solution, run the visible tests, submit against the hidden ones, get instant pass/fail. Nothing to install.
Free to solve, always
Every CodeSuite problem is free to run and submit. No trial, no paywall on the core loop. Pro only adds the learning layer on top.
Start where you are and climb. Every problem is tagged so you can drill the exact level you're interviewing for.
Solve every problem
- Run & submit against the full test suite
- Browser editor, multiple languages
- Submission history
- The whole catalog — no problem is paywalled
Learn how to solve it
- Progressive hints on every problem
- Ask Cody — intuition, approach, complexity, pitfalls
- Editorial solutions & walkthroughs
- Unlimited exercises + daily routine builder