CodeCoach

Progressive AI hints, code review, wrong-answer notes, and local weakness tracking for LeetCode and Programmers practice pages.

CodeCoach — AI Coding Practice Assistant Practice smarter on LeetCode and Programmers with AI-powered hints, code review, debugging help, and personalized study tracking. CodeCoach helps you learn how to solve problems step by step, without jumping straight to full answer code. ──────────────────── MAIN FEATURES ✔ Progressive AI hints ✔ Light, direction, and specific hint levels ✔ Line-by-line code explanation ✔ Code review for approach, complexity, and edge cases ✔ Debug help for errors and failing test cases ✔ Wrong-answer notes for review ✔ Weakness tracking by algorithm type and problem pattern ✔ Spaced-repetition review planner ✔ Practice timer for test-like sessions ✔ Local history, code snapshots, bookmarks, and Markdown export ✔ Bring your own OpenAI API key ✔ Optional Google sign-in for learning metadata sync ──────────────────── LEARN WITHOUT SPOILING THE ANSWER Choose how much help you want. Get a small nudge, algorithm direction, or a concrete next step while still keeping the problem-solving process yours. CodeCoach is designed to guide your thinking, not replace it. ──────────────────── TURN MISTAKES INTO STUDY NOTES When you get a wrong answer, CodeCoach can generate a structured note explaining what went wrong, what insight you missed, and what to review next. Save notes locally, copy them, or export them as Markdown. ──────────────────── TRACK YOUR WEAK SPOTS CodeCoach tags your practice activity by problem type, algorithm category, and caution points. Over time, you can see recurring weaknesses and review the problems that need more practice. ──────────────────── BRING YOUR OWN OPENAI API KEY AI requests are sent directly from your browser to OpenAI using your own API key. CodeCoach does not operate a separate backend server for OpenAI requests. ──────────────────── SUPPORTED PLATFORMS ✔ LeetCode ✔ Programmers Supported domains: * leetcode.com * programmers.co.kr ──────────────────── PRIVACY CodeCoach runs only on supported coding-practice pages. It may read visible problem context, editor code, selected text, visible run/submission results, and your typed questions to provide its features. Your OpenAI API key, saved code snapshots, wrong-answer notes, settings, and local study history are stored locally in your browser. Optional Google/Firebase sync is used only for authentication and learning metadata such as hint events, weakness categories, review schedules, problem identifiers, languages, and timestamps. CodeCoach does not sell user data, does not use user data for advertising, and does not access unsupported websites.