Open3D Viewer
Free viewer for STL, GLB, STEP — replaces Windows 3D Viewer
What it does
Free 3D file viewer for STL, GLB, OBJ, FBX, STEP, IGES and more. Direct replacement for Microsoft 3D Viewer (removed July 2026). Works on Windows, Android, iOS, and in any browser. No account, no upload — files stay on your device.
Free replacement for Microsoft 3D Viewer (removed July 2026). Open STL, GLB, OBJ, STEP, IGES and more in your browser or on Windows, Android, iOS — no upload, no account, fully offline.
Drop a file. No upload, no account, no install. Also the free replacement for Windows 3D Viewer on desktop. The formats people actually have on their drive — from the web's glTF standard to the FBX files Maya and Unreal ship. The web's standard for 3D — meshes, materials, animation, packed into one file. Editable glTF with external textures. Common output from Blender, Sketchfab, and most engines. The interchange format for Maya, Blender, Unreal, Unity. Rigs, skinning, animation tracks. The lingua franca of 3D printing. Triangle meshes, nothing else. The 35-year-old standard everything still exports to. Mesh plus optional MTL. STL's successor — color, materials, and print metadata, all in…from open3d.app
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Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io
- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com