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More learning tools and practice platforms covering system design, coding challenges, UI patterns, React, and AI/ML.
An interactive detective game where you investigate real-world backend engineering incidents. Analyze logs, metrics, code, and testimonies to diagnose root causes — with an AI mentor to guide your investigation. Covers AWS, databases, Kubernetes, message queues, auth, monitoring, load balancing, resilience patterns, and more.
121 cases, 11 categories, Junior → Principal difficulty
A LeetCode-style coding platform focused on JavaScript and TypeScript mastery. Features 155+ challenges across 19 categories with a Monaco Editor integration, sandboxed test runner, progress tracking, and real-time code validation.
155+ problems, 19 categories, 40+ test suites
Production-ready collection of 90+ modern React UI patterns and components. Includes interactive event calendars, advanced data tables, drag-and-drop interfaces, form patterns, navigation systems, and data visualizations — all with TypeScript and accessibility compliance.
90+ components, 5 pattern categories
Interactive learning platform for mastering system design interviews. Covers 50 study topics, 40 core concepts, and 60 quiz questions spanning load balancing, database replication, caching strategies, microservices, event-driven architecture, and more.
50 topics, 40 concepts, 60 quiz questions
Modern React reimagining of Wes Bos's JavaScript30 course. All 30 vanilla JS projects rebuilt as type-safe React components using Next.js, TypeScript, and Tailwind CSS — covering DOM manipulation, Canvas API, WebRTC, Speech Recognition, Geolocation, and more.
30 interactive projects
Comprehensive AI and machine learning learning platform with interactive mnemonics, character-based learning, and quizzes. Covers core ML, deep learning, computer vision, NLP, transformers, reinforcement learning, MLOps, and responsible AI across 30+ sections with 1000+ quiz questions.
30+ sections, 1000+ questions, 10+ categories
Interactive memorization app for Google's 43 Rules of Machine Learning Engineering. Features browse, study, and flashcard modes with category filtering, search, progress tracking, and sequential or randomized learning sessions.
43 rules, 3 study modes, 12 categories