Chess
A complete chess game in the browser with a 3D board — full rules, a built-in engine, no dependencies.
♟ Board & Puzzle 14
Think first, click second.
Cola Bomb
Pull the safe cola bottles out of the crate and leave the shaken ones alone — a single-file browser game.
Go-Stop (고스톱)
브라우저에서 바로 즐기는 2인 고스톱(맞고). 화투 48장을 전부 SVG로 그렸고 빌드도 의존성도 없습니다.
Gomoku
Five in a row on a 15x15 board, with an alpha-beta AI opponent. No build step, no dependencies.
Ironhold
Ironhold — a 3D browser tower defense game. Hand-written WebGL, vanilla ES modules, no build step and no dependencies. 20 waves plus endless mode, balance verified by a headless scripted player.
Jigsaw Puzzle
A browser jigsaw puzzle with real interlocking pieces, group dragging, optional rotation and procedurally generated pictures. No dependencies, no build step.
Mahjong Solitaire
Mahjong solitaire in the browser — six boards, every deal guaranteed solvable, no build step and no dependencies.
Memory Game
A dependency-free card-matching memory game in vanilla HTML, CSS and JavaScript.
Number Guess
A small dependency-free browser game: guess the secret number in as few tries as you can.
Picross Lab
A nonogram puzzle game where every board is verified solvable by pure logic — you never have to guess.
Felt & Fold
No-Limit Texas Hold'em in the browser: three AI opponents, real side pots, no build step.
RGB Guess
Guess a color's RGB values, score points and climb the leaderboard.
Four Walls
Four Walls — four room escape games drawn entirely in code. No build step, no dependencies, no image files.
Room Escape Game For Kids
A friendly three-room escape game for kids — play in the browser, no install.
⚽ Sports & Cue Sports 8
Balls, paddles, cues and courts.
Blobby Beach Volley
A two-blob beach volleyball game in the browser. No build step, no dependencies, seeded physics core with a headless test suite.
Buzzer Beater
A 60-second arcade basketball shootout in the browser. No dependencies, just canvas.
Eight Ball
Three-dimensional eight-ball pool in the browser — break, run your group, sink the 8. No build step.
Four-Ball Billiards
Korean four-ball carom billiards (사구) in the browser — two reds, two cue balls, no pockets. Plain HTML/CSS/JS.
Ping-Pong
A small browser ping-pong game: canvas, no build step, CPU or two players.
Pocket Links
A nine-hole mini golf game that runs entirely in the browser. No dependencies, no build step.
Soccer Game
Touchline — a six-a-side arcade soccer game that runs in any browser. Vanilla JS, no build step, headlessly tested match engine.
Three-Cushion Billiards
Three-cushion carom billiards in the browser: a real physics engine with spin and cushion friction, and an opponent that searches for its shots.
👾 Arcade & Action 14
Reflex games with a short fuse.
Skyward Strike
Skyward Strike — a vertical-scrolling airplane shooter that runs in the browser. No build step, no dependencies, no assets.
Ascent
A 3D mountain climbing game in the browser: pick your line, ration your strength, plant the flag.
Sugar Strand
A browser candy necklace game: thread the order, dodge the rest, bite off your mistakes.
Sunset Circuit
Sunset Circuit — a pseudo-3D arcade racer in the browser. No build step, no dependencies, no image files.
Catch Insects
A 60-second 3D insect-catching game for the browser. WebGL via three.js, no build step, no assets.
Beat Machine
🥁 A browser drum rhythm game — five drums, four charts, every sound synthesised with the Web Audio API. No samples, no build step.
Fly Game
A small 3D arcade game about a housefly with poor life choices. three.js, no build step.
Fretboard Fever
Fretboard Fever - a five-fret guitar rhythm game in the browser. Three original songs, no audio files: every sound is synthesised at runtime.
Jump Rush 3D
An endless jumping game in one canvas — no build step, no dependencies.
Key Cascade
Key Cascade — a browser piano rhythm game. Falling notes, two octaves, Web Audio synthesis, no assets.
Neon Drift Pinball
A 3D pinball table in the browser — WebGL2 rendering over a tested planar physics engine. Vanilla JavaScript, no dependencies.
PULSEGRID
A four-lane browser rhythm game with zero audio files — every note is synthesized with the Web Audio API, and the charts are derived from the music itself.
Skyline Courier
A 2D physics drone-delivery game. Fly the package, land it soft, don't clip the wires. Runs in the browser with no build step.
Snake Game
A dependency-free snake game in the browser: canvas rendering, fixed-timestep loop, smooth interpolated movement.
🍳 Simulation & Craft 15
Build, tend, dig and brew.
Airplane Emulator
A browser flight simulator: six-degree-of-freedom flight model, full instrument panel, procedural terrain. No dependencies, no build step.
Barista Game
☕ Bean & Brew — a 3D browser barista game. Grind, pull, steam and serve before your customers walk out.
Car Emulator
A browser car emulator: engine, drivetrain, tyre and chassis simulation with a live instrument cluster and an OBD-II diagnostic port.
Cooking Game
Skillet Rush - a browser cooking game with a 3D skillet. Read the tickets, build the dish, ride the heat band. No build step.
CTB World
A multiplayer world-building game in the browser: shape a world with friends, awaken peoples, and write the chronicle of three Ages. Peer to peer or self-hosted, no build step.
Deep Drift
A browser mining game: dig down, get rich, upgrade the rig, find the Core. No build step, no dependencies.
Drone Emulator
A browser quadcopter flight simulator with a real six-degree-of-freedom flight model, a cascaded flight controller, wind, battery sag and a timed race course.
Fishing Game
Deep Blue — a small browser fishing game. Cast into the deep, fight what bites, fill the Fishdex. No build step, no dependencies.
Hollow Pines Farm
A small 3D farming game in the browser — till, plant, water, harvest, sell. No build step; three.js and static files.
Human Body Emulator
An interactive real-time simulation of the coupled systems of the human body
Kids World
A cozy 3D block-building island game for kids, to play together in the browser.
Pet Raising Game
A browser pet raising game: hatch an egg and raise it through five life stages and twelve forms. No dependencies, no build step.
Physics Playground
A 2D rigid-body physics sandbox in the browser. No dependencies, no build step.
Universe Emulator
An interactive universe emulator: Friedmann cosmology, a comoving N-body cosmic web, a galaxy that needs dark matter, and the real solar system. No build, no dependencies.
Zoo Emulator
A zoo management simulator that runs entirely in the browser — deterministic, tested simulation core, no build step.
🎓 Learning & Quiz 7
Practice drills that keep score.
Capital Quiz
나라 이름을 보고 수도를 맞히는 웹 퀴즈 (UN 회원국 193개국, 한국어/영어)
Chinese Game
한국인 학습자를 위한 중국어 게임 — 낱말·성조·한자·듣기·어순 5가지 모드
English Word Game
Guess a five-letter word in six tries — a dependency-free English word game with a definition for every answer.
Fun English Game
🦁 Word Safari — a fun English word game for kids. One HTML file, no install, no dependencies.
Fun Math Game
🚀 Math Blast — a colourful, keyboard-friendly arithmetic game for kids. No build, no dependencies.
Keyboard Game
한글 두벌식 · 영문 QWERTY 타자 연습 게임 — 브라우저 IME 없이 동작하는 한글 조합 오토마타. 의존성 없는 단일 페이지.
Math Game
한국어 숫자 읽기 연습 게임 — Korean number reading practice, up to 조 (trillion). No build step, no dependencies.
🧰 Notes & Tools 26
Things that are not games.
AI News
Automated AI news digest, refreshed every 5 hours
Camera Cast
Stream your camera to any browser, peer-to-peer over WebRTC. No app, no account.
How a Computer Works
An interactive, visual tour from one transistor to a running program — with a working 8-bit CPU you can step through one clock tick at a time.
The English Study Map
A visual, interactive map of English from kindergarten to university: six stages, eight strands, 48 squares, 288 skills.
Face Beautifier
Real-time face beautifier for your webcam: GPU skin smoothing, landmark-driven face reshaping and makeup, entirely in the browser.
Face Beautifier Auto
Real-time face beautifier that runs entirely on your own machine — MediaPipe landmarks, a WebGL2 retouching pipeline, and an auto tuner that reads each frame. No server, no uploads, no build step.
How a Car Works
Interactive, animated teardown of a car: seven working models of the systems inside it, each driven by real geometry and physics.
How an Air Conditioner Works
Interactive, animated cutaway of a split air conditioner: follow the refrigerant, change the weather, watch the room respond.
How an Airplane Works
An interactive, visual teardown of how an airliner flies — anatomy, the four forces, a live Joukowski potential-flow solver for the wing, flight controls, a turbofan cutaway, and a full flight profile. No frameworks, no build step.
How Claude Code Works
An interactive, visual explainer of the agent loop behind Claude Code: tool calls, permissions, context and subagents.
How the Internet Works
An interactive, animated tour of what happens between typing a URL and seeing a page: DNS, routing, packets, TCP, TLS, HTTP and the cables underneath.
Inside the Human Body
Interactive, animated tour of how the human body works — seven organ systems, live physiology, no dependencies.
Inside the JVM
An interactive, visual tour of how the Java Virtual Machine works: class loading, memory areas, a working bytecode interpreter, JIT tiers and generational GC.
Kids Dictionary
어린이 영어 사전 — An English dictionary for kids, with Korean meanings and easy English definitions.
Knowledge Base
Durable, general engineering knowledge, written to be read by an AI coding agent. One entry, one fact — it has to hold on a different machine, a different project, and in six months.
How an LLM Works
Interactive, visual explainer of how a large language model works — tokenizer, embeddings, attention, layers, sampling and training, all running live in the page.
LOC Viewer
Per-language lines of code for a directory, counted in the browser
The Math Study Map
An interactive map of mathematics from kindergarten to university: 131 topics wired together by prerequisite.
How a Mobile Phone Works
An interactive, visual explainer for how a mobile phone actually works — hardware stack, radio link, cell handover, capacitive touch, the SoC and the software stack.
Pomodoro Timer
A minimal, dependency-free Pomodoro timer that runs entirely in the browser.
QR Coder
Scan QR codes with your camera and create your own, in the browser. From-scratch encoder and decoder, no dependencies, nothing uploaded.
Share Anything
Share text, links and files through end-to-end encrypted, self-destructing links. Self-hosted, zero dependencies.
Study English
English practice log: per-session corrections and recurring mistake patterns.
Study Math
A record of what I learn about mathematics — one idea per note, indexed.
Study Science
A record of what I learn about science — short, structured notes, one idea per file.
Mote: A Browser From Scratch
A web browser written from scratch in pure Python: its own HTTP/1.1 client, HTML and CSS parsers, cascade, layout engine, painter and PNG/GIF/JPEG decoders. No rendering engine underneath.