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Choose Your Interview Arena

Algorithms, system design, debugging, behavioral — pick a mode. It all runs in your browser, so nothing about how you practice gets logged anywhere.

Question Bank

High-yield interview questions with model answers, pitfalls, and SM-2 spaced repetition.

Write, debug, and execute code in an isolated browser sandbox against automated test suites.

Find and squash hidden bugs (off-by-one, memory leaks, concurrency races) against the clock.

Simulate full end-to-end technical interviews with structured rubric scoring and stage-by-stage progression.

Test your reflex knowledge under high pressure. Rapid multiple-choice questions against a 30s countdown.

Architect scalable real-world systems: rate limiters, URL shorteners, distributed caching, and microservices.

Master the STAR method with structured prompts covering conflict resolution, leadership, and project execution.