Render PNG previews of STL/OBJ/GLB files for galleries, README docs, and product pages. WebGL renderer, browser-based, no upload.
Upload your model and choose output dimensions
three.js renders an isometric preview using a WebGLRenderer + neutral lighting
Download the PNG thumbnail — ready for any product page
0 bytes uploaded. 3D Model Thumbnailer runs entirely in your browser using three.js and WebGL. Your meshes never leave your device.
Isometric (35.264° elevation, 45° azimuth) — the standard for 3D previews. The mesh is auto-framed and centred.
Output is transparent PNG by default. Composite onto any background you like in your CMS or design tool.
Either WebGL isn't available (very old browser or hardware acceleration disabled) or the model has zero-volume geometry. Check the Network tab and try a different browser.
Compute the X/Y/Z bounding box of any STL, OBJ, or GLB mesh. Get exact print dimensions in mm — useful for fitting models to your printer bed.
Open toolGet exact vertex, edge, and face counts for STL, OBJ, and GLB files. Useful for performance budgeting in games, AR, and 3D printing.
Open toolConvert STL files to GLB (binary glTF) directly in your browser. Smaller, faster, and AR-ready. Zero upload — your meshes never leave your device.
Open tool