OAMax

Randomized, timed LeetCode practice and OA simulation.

OAMax turns LeetCode into focused practice. It lives in Chrome's side panel next to the problem you're solving. Pick your topics and difficulty, hit Start, and OAMax opens a random problem for you. PRACTICE MODE • Untimed and endless • Get Accepted to unlock the next problem, or skip • Your verdict appears the moment LeetCode judges your submit OA MODE • Simulates an online assessment • A set number of questions (3 by default), each with its own timer • Default limits: Easy 10 min, Medium 20 min, Hard 30 min, all adjustable • Submitting moves you on, right or wrong; results only at the end HISTORY • Every session is saved • See your score trend and your weakest topics Free problems only. Premium problems are never picked. Privacy: OAMax has no servers and collects nothing. Your sessions and history stay in your browser. It reads your submission verdicts from LeetCode using your existing login, and nothing else. You need to be logged in to LeetCode to submit.