Open-source · Runs in your browser
Build with bricks, in the browser.
A free, open building tool: a 3D brick editor, a directory of every part, and a directory of builds you can load and remix.
3D editor
Build
Place real bricks on a baseplate in your browser. Keyboard-first placement, undo/redo, color picker, and .ldr import/export.
5,459 parts with 3D geometry
Directory
Parts
Browse and search the full parts catalog with live 3D previews, categories, and color availability.
63,560 parts · 274 colors
Directory
Builds
Official sets with full inventories, community 3D reconstructions you can open in the editor, and thousands of generated structures.
27,248 sets · 47,389 structures