HyperSheets is the most comprehensive web development learning platform in Indonesia. From HTML to Rust, AI for Web, to System Design — all interactive, right in your browser or on your phone, 100% free, and ad-free.
📚 46 CATEGORIES — 1,100+ INTERACTIVE MATERIALS
HTML, CSS, JS, TS, React, Vue, Svelte, Angular, SolidJS, HTML, Tailwind, Python, Go, Rust, PHP, Laravel, Node.js, SQL, Database, Git, Terminal, Regex, Debugging, API, GraphQL, Auth, Testing, Security, DevOps, Performance, Clean Code, Design Patterns, System Design, Web Fundamentals, Animation, Creative Web, UI/UX, AI for Web, WebAssembly, Web3, Realtime, i18n, Mobile, Data Engineering, Algorithms, Data Structures. Each lesson includes theory, diagrams, demos, quizzes, and review cards.
✏️ 990+ CODING EXERCISES
In-browser editor for 14 languages — syntax highlighting, auto-complete, Prettier, Zen mode, expected-vs-actual diff. SQL editor, PHP transpiler, Laravel in-browser simulator.
🎮 95 MINI GAMES
Flexbox Frog, Grid Garden, Bug Detective, Regex Net, Terminal Explorer, Digital Security Guard, Server Mayor, Pattern Architect, Component Builder, Sorting Race, Guess the Big O, Hash Hunter, Algorithm Race, and 82 more. Each game includes progressive hints, concept intro, and review.
🧭 87 EXPLORE PLAYGROUND
Visualization hub in /explore — box model, flexbox, grid, event loop, prototype chain, JWT decoder, CORS, debounce vs throttle, Core Web Vitals live, regex tester, Git branching, Shadow DOM, WebSocket, Service Worker, and 73 others. Search + filter + lucky dip.
⌨️ 10-FINGER TYPING SCHOOL
20 lessons + certificate + badge. 9 coding languages. Flow mode, ghost replay, weak-key drill, blind mode, virtual keyboard heatmap, daily challenge, per-language leaderboard.
⚡ 210+ CHALLENGES — 10 TYPES
CSS Battle, Debug, Speed Code (timed + global leaderboard), Responsive, A11y, JS Output, JS Problem, DOM, Creative, CSS-only.
🎤 SPEAKING TRAINING
40 developer scenarios: standups, demos, interviews, code reviews, client meetings.
🏆 GAMIFICATION
• 275+ badges (7 secret badges + redeem code + LinkedIn certificate per completed category)
• 75 levels (Beginner → Legend → Mythic)
• Daily + category streak
• Weekly leagues, 5 leaderboards
• Coin economy
🎨 200+ COSMETICS
Avatar frames + borders (stackable), username styles, banners, pixel pets, card styles, loading art. Shimmer Epic/Legendary, live preview.
👥 SOCIAL & COMMUNITY
• Work Gallery — show off projects, likes, and community
• Peer Solutions + Pioneers — see other students' passing code
• Growth Replay — compare first vs. last code run
• Activity feed + react/comment, follow/unfollow
• Heatmap profile + portfolio
• Classroom — teachers create classes and track student progress
🐾 PET COMPANION V2
Multi-pet carousel, bond stages, nicknames, daily petting, 3 snacks/day, hunger bar. Pets react to pass/fail/level. Cloud sync from phone to laptop.
🧠 PEDAGOGY PRO
Spaced repetition SM-2, 16 misconception auto-detection patterns, transfer probes, explain-why classifier, reflection flashcards, pretest recommendations, AHA callouts, chapter gates, learning objectives. Hex AI Hint appears after 5 identical fails.
🎯 DAILY PUZZLE
Guess Words & CSS Connections — timer + daily leaderboard.
📊 COMFORTABLE DASHBOARD
Continue where you left off, streak countdown, daily recap, mastery nudge, weekly digest, per-concept heatmap, review queue.
🔍 CMD+K SEARCH
Search for materials, games, challenges, playgrounds, profiles — from one shortcut.
📱 AVAILABLE ANYWHERE
PWA install, offline mode, push notifications with quiet hours, swipe between exercises, bottom sheet modals, View Transitions.
🆓 100% FREE — NO ADS, NO SUBSCRIPTIONS
Made with ❤️ for the Indonesian developer community.