Chili3d – A open-source, browser-based 3D CAD application
I'm currently developing Chili3D, an open-source, browser-based 3D CAD application. By compiling OpenCascade to WebAssembly and integrating Three.js, Chili3D delivers near-native performance for powerful online modeling, editing, and rendering—all without local installation. Access it here: https://github.com/xiangechen/chili3d Features: Modeling Tools: Create basic shapes (boxes, cylinders, cones, etc.), 2D sketches (lines, arcs, circles, etc.), and perform advanced operations (boolean operations, extrusion, revolution, etc.). Snapping and Tracking: Precisely snap to…
In plain words
Chili3D is an open-source, browser-based 3D CAD application that runs directly in web browsers without requiring installation. It uses OpenCascade compiled to WebAssembly and Three.js to deliver near-native performance for modeling, editing, and rendering. The application offers modeling tools for creating basic shapes and 2D sketches, advanced operations like boolean operations and extrusion, precise snapping and tracking, editing capabilities including chamfering and filleting, and measurement tools for angles and lengths. It is designed for anyone needing accessible CAD functionality online.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
I'm currently developing Chili3D, an open-source, browser-based 3D CAD application. By compiling OpenCascade to WebAssembly and integrating Three.js, Chili3D delivers near-native performance for powerful online modeling, editing, and rendering—all without local installation. Access it here: https://github.com/xiangechen/chili3d Features: Modeling Tools: Create basic shapes (boxes, cylinders, cones, etc.), 2D sketches (lines, arcs, circles, etc.), and perform advanced operations (boolean operations, extrusion, revolution, etc.). Snapping and Tracking: Precisely snap to geometric features, workplanes, and track axes for accurate alignment. Editing Tools: Modify (chamfer, fillet, trim, etc.), transform (move, rotate, mirror), and perform advanced edits (feature removal, sub-shape manipulation). Measurement Tools: Measure angles and lengths, and calculate sums of length, area, and volume. Document Management: Create, open, and save documents, with full undo/redo history and support for importing/exporting STEP, IGES, BREP formats. User Interface: Office-style interface with contextual command organization, hierarchical assembly management, dynamic workplanes, and 3D viewport controls. Multi-Language Support: Built-in i18n support with current languages including Chinese and English.
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