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Tiny fast 2D/3D HTML5 game engine with many features and no dependencies.
Compress JSON into URL friendly strings
A Tiny JavaScript Sound FX System
2 Kilobyte 3D racing game in JavaScript
A roguelike platformer with destructible environments in 13KB of JavaScript
Boomerang Zelda Homage for JS13k
1 Kilobyte JavaScript Piano
Size Coding Magic π§
AI-assisted toolkit for making HTML5 games with LittleJS: the engine, templates, and agent instructions that work with Claude Code, Codex, Cursor and Copilot, so the AI builds your game instead of rebuilding an engine. Installable as a Claude Code plugin.
How many sprites and 3D cubes can a web engine draw at 60 fps on your machine? LittleJS, PixiJS, Three.js, PlayCanvas, Phaser and Babylon.js, on WebGL and WebGPU. Run it and share your results.