Blender
Blender is the world's most popular open-source 3D tool, but its desktop app has a steep learning curve that intimidates hobbyists who just want to create simple meshes for 3D printing.
Core trick
Compiles Blender's C++ mesh engine to WebAssembly and exports a deduplicated, millimeter-scaled 3MF file for slicers.
Description
Blender is the world's most popular open-source 3D tool, but its desktop app has a steep learning curve that intimidates hobbyists who just want to create simple meshes for 3D printing. Blender Web
Lite brings core mesh editing to the browser in a stripped-down, approachable interface.
Built on a fork of the official Blender repo, the project compiles Blender's C++ geometry engine to WebAssembly via Emscripten, wrapped in a React frontend with a custom WebGL2 viewport. Users get
essential tools — select, grab, rotate, scale with per-axis gizmos, extrude, subdivide, and delete — mirroring Blender's conventions without the overwhelming UI.
The highlight for 3D printing users is one-click 3MF export: the app deduplicates vertices, bakes transforms, scales to millimeters, packages a valid 3MF ZIP, and triggers a browser download that
opens directly in Bambu Studio and other slicers — a format Blender Desktop doesn't even support.
README excerpt
<!-- Keep this document short & concise, linking to external resources instead of including content in-line. See 'release/text/readme.html' for the end user read-me. --> Blender ======= Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing, motion tracking and video editing.  Project Pages ------------- - [Main Website](http://www.blender.org) - [Reference Manual](https://docs.blender.org/manual/en/latest/index.html) - [User Community](https://www.blender.org/community/) Development ----------- - [Build Instructions](https://developer.blender.org/docs/handbook/building_blender/) - [Code Review & Bug Tracker](https://projects.blender.org) - [Developer Forum](https://devtalk.blender.org) - [Developer Documentation](https://developer.blender.org/docs/) License ------- Blender as a whole is licensed under the GNU General Public License, Version 3. Individual files may have a different but compatible license. See [blender.org/about/license](https://www.blender.org/about/license) for details.