LoopCoach for LeetCode

Land the offer at your dream company. Measure your mastery in seconds, see how you stack up, close the gaps. All inside LeetCode.

Clear the bar at your target company, right inside LeetCode. The best way to prep for coding interviews. Bar none. You can't improve what you can't measure. LoopCoach measures every LeetCode solve against your target company's bar, then tells you exactly what to practice next. No new site to learn: open any problem and LoopCoach is there. HOW IT WORKS 1. Import your LeetCode history One click brings in everything you've already solved. No placement test, no starting from zero. 2. Measure your mastery Every topic starts at your level, weighted by how hard each problem was. 3. Pick a target company Choose from 55 calibrated companies, each with its own topic mix and difficulty. 4. See where you stand Your mastery on 36 topics, measured against the topic mix and difficulty of the company you're targeting, right in the side panel. 5. Close your gaps The next problem just past your level, on the topics your company asks most, from the lists you already grind. One click opens it on LeetCode. ON EVERY LEETCODE PROBLEM A real interview clock Time every attempt against interview pace. Pause when you step away; LoopCoach pauses itself when you go idle. Socratic hints Stuck? You get a question that moves you forward, like "What would you need to remember about the numbers you've already passed?" Never the answer. Scored on every detail Each Submit counts its difficulty, your time, every hint and failed Submit, and whether you reached the optimal approach. Only the topics your solution used move. Time and space complexity, checked See your solution's complexity and whether it's optimal, without leaving the page. Solution review An interviewer's read of your accepted code: a first-principles walk from your approach to the optimal one, plus the readability fixes interviewers notice. A short reflection Lock in what you learned before you move on. HELD TO YOUR COMPANY'S BAR Every topic is weighed by how often your target company asks it and how hard, so readiness means that company's bar, not an average. Topics you leave alone lose certainty, so mastery from months ago has to prove itself again. STOP BLINDLY GRINDING LISTS Keep using the study lists you already grind. LoopCoach tracks your progress on them, tells you which problem in them matters most for your company, and brings back what you're about to forget. BUILT BY ENGINEERS WHO'VE CLEARED THE BAR Made by engineers who've landed offers at top tech companies. An opinionated coach built on the study techniques that worked for us, backed by decades of learning science. 3,500+ LeetCode problems supported, each with an in-house difficulty score 36 topics tracked, from arrays to union-find 55 companies calibrated Free for everyday practice. Sign in with Google or GitHub, open a LeetCode problem, and start. LoopCoach is not affiliated with or endorsed by LeetCode.