The best open source alternative to Sketchfab is MediaGoblin. If that doesn't suit you, our users have ranked more than 50 alternatives to Sketchfab and 11 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Sketchfab are Online 3D Viewer, Manyfold, Art of Illusion and SEA3D.
MediaGoblin is a free software media publishing platform that anyone can run. You can think of it as a decentralized alternative to Flickr, YouTube, SoundCloud, etc.
Art of Illusion is a free, open source 3D modelling and rendering studio. It is written entirely in Java, and should be usable on any Java Virtual Machine which is compatible with Java 5 or later.
Fragmentarium is an open source, cross-platform IDE for exploring pixel based graphics on the GPU.
DeleD is a 3D modeler and level-editor combined into one. It focuses at game development and is specifically designed to create static objects/worlds. Other areas in which you can put DeleD to good use are, for example, educational services, webdesign, prototyping and image...
Based on the F3D library that supports many file formats, from digital content to scientific datasets including glTF, USD, STL, STEP, PLY, OBJ, FBX, Alembic and many more. Drag and drop 3d models into the app and export an image of the 3d model.
The Grit Game Engine is an MIT-Licensed Open Source Game Engine that is highly scriptable via Lua. It supports huge open world maps and dynamically streams assets from disk. The Grit Game Engine is a community project to build a free game engine (and toolchain) for implementing...
K-3D is free-as-in-freedom 3D modeling and animation software. It features a plugin-oriented procedural engine for all of its content, making K-3D a very versatile and powerful package.
OpenFX is an open-source, free modeling and animation studio, distributed under the GNU General Public License.
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this is not 3d resource site