Rig Bake › Tools

Free 3D model tools

Fifteen single-purpose tools for GLB, GLTF, FBX, OBJ, DAE, STL, PLY, VOX and VRM files. Each one does its job on the page you land on — no sign-up, no upload, no file size limit. Your models stay on your machine.

Open the full editor — free, in your browser

The tools below are the editor's individual passes, each on its own page.

Animate

New on Rig BakeFilm a move. Get the animation.Film a move on your phone, drop the video, and get it back as a 3D animation, fingers included — on your own character, or on ours.Turn a video into a 3D animation →

Skeleton & skin weightsMake it walk.Give a humanoid model a skeleton and skin weights, in your browser. Drop a static character — from an AI generator, a scan or a sculpt — and get back an animation-ready GLB.Auto-rig a character →

Optimize

Compress GLBCompress a GLB or any 3D model online, free. Name the file size you need — "get it under 5 MB" — and it works down to that number, keeping every triangle for as long as it can. No upload, no size limit, runs in your browser. Reduce polygonsReduce the polygon count of a GLB, GLTF, FBX, OBJ, DAE, STL, PLY, VOX or VRM online, free — no file size limit, nothing uploaded, everything runs in your browser. Keeps UVs, textures, materials and skin weights, including on rigged characters. LOD GeneratorGenerate LOD levels for a 3D model online, free — GLB, GLTF, FBX, OBJ, STL, PLY or VRM in, a zip of ready-to-use LOD meshes out. Each level keeps UVs, textures and skin weights. No file size limit, nothing uploaded. Merge MaterialsMerge the materials of a 3D model online, free — every texture re-baked into one shared atlas, every mesh merged into one, draw calls reduced to a single one. GLB, GLTF, FBX, OBJ and more. No file size limit, nothing uploaded.

Rebuild & bake

Quad remeshAutomatic quad retopology online, free, on a GLB, GLTF, FBX, OBJ, DAE, STL, PLY, VOX or VRM — no file size limit, nothing uploaded. Rebuilds the surface as clean quads, then re-unwraps it and re-bakes every texture onto the result — the step desktop tools leave to you. Bake a normal mapBake a tangent-space normal map (and ambient occlusion) from a high-poly onto a low-poly 3D model online, free — GLB, GLTF, FBX, OBJ, STL and more, ray-traced on your GPU, nothing uploaded. Drop one heavy model and get a decimated version that renders like the original, or bring your own low-poly. Pixel art from 3DTurn a 3D model into a pixel-art spritesheet in your browser, free — GLB, GLTF, FBX, OBJ, DAE, STL, PLY, VOX or VRM, no file size limit, nothing uploaded. DawnBringer, PICO-8, NES, Game Boy and CGA palettes with ordered dither.

Fix

Check a 3D model for problemsCheck a 3D model for problems online, free — GLB, GLTF, FBX, OBJ, DAE, STL, PLY, VOX or VRM, no file size limit, nothing uploaded. Reports wrong scale, broken bind poses, inverted normals, overlapping UVs, non-manifold topology and holes, and fixes what is safe to fix. Repair a 3D modelRepair a 3D model online, free — GLB, GLTF, FBX, OBJ, DAE, STL, PLY, VOX or VRM, no file size limit, nothing uploaded. Welds duplicate vertices, removes degenerate faces and stray islands, fills holes and flips inverted normals, without breaking rigged meshes.

Convert

FBX to GLBConvert FBX to GLB online, free — no file size limit, nothing uploaded, the conversion runs in your browser. Keeps the skeleton, skin weights and every animation clip, and fixes the 100× centimetre scale Mixamo exports arrive with. OBJ to GLBConvert OBJ to GLB online, free — no file size limit, nothing uploaded, the conversion runs in your browser. Geometry and UVs come across, the model is recentred, and the result opens in three.js, Godot, Unity and every glTF viewer. GLB to STLConvert a 3D model to STL online, free — GLB, GLTF, FBX, OBJ, DAE, PLY, VOX or VRM, no file size limit, nothing uploaded. Scales to millimetres, converts Y-up to Z-up for Cura and PrusaSlicer, and reports whether the mesh is watertight before you slice it. GLB to USDZConvert GLB, GLTF, FBX, OBJ, STL, PLY or VRM to USDZ online, free — no file size limit, nothing uploaded, the conversion runs in your browser. Textures come across as USD preview surfaces and the file opens straight into AR Quick Look on iPhone and iPad.

In bulk

Batch processingRun any Rig Bake tool over a whole folder of models and get one zip back.

What else Rig Bake does

The tools above are the file-level jobs. Rig repair, animation retargeting, cloth and VFX, spritesheet and pixel-art baking live on the features index.