Hire the Best Developers
with Real Code Challenges

Timed coding challenges with built-in compilation, multi-language support, and automatic ranking. Stop guessing — start measuring.

Everything you need to evaluate talent

Multi-Language Support

Python, JavaScript, TypeScript, Java, Go, Rust, C++, C# — test candidates in the language that matters for your team.

Timed Challenges

Set time limits per challenge. The countdown starts when the candidate begins, adding real-world pressure to assessments.

Built-in Code Execution

Code compiles and runs in real-time. Test cases validate output automatically — no manual review needed.

Automatic Ranking

Candidates are scored and ranked based on correctness, speed, and efficiency. Find your top performers instantly.

Rich Code Editor

Monaco-powered editor with syntax highlighting, auto-completion, and a professional coding experience.

Hidden Test Cases

Mix visible and hidden test cases. Candidates see sample tests but are scored on the full suite.

Supported Languages

PythonJavaScriptTypeScriptJavaGoRustC++C#