Convert 3D models between different formats online. Free and easy to use, supporting conversion between mainstream formats like GLB, GLTF, OBJ, STL and more. No software installation required - complete conversions directly in your browser.
Everything runs in your browser - no uploads or servers.
A 3D animator who needs a human motion clip types one sentence in the browser and previews the motion when the job finishes. Sign in before the job can start. The Generate click checks credits: Fast uses 60 and Standard uses 80. If the balance is short, the credit purchase opens then. A daily claim adds 50 credits; from a zero balance, two claims cover one motion.
From one sentence
A text prompt in the browser
Preview the clip
Watch the motion when it finishes
60 / 80 credits
Fast / Standard, checked at generate
50-credit daily claim
Two claims cover one motion from zero
Quick tips
This page converts a STL file to OBJ directly in your browser, with nothing uploaded. Choose a file, check it in the preview, press convert and download the result. The converter reads the model with three.js, shows it, and writes a new file with the matching three.js exporter. Because formats store different things, some information can be lost; the sections below list what carries over and what does not for this exact pair.
Stereolithography (STL) (.stl)
Wavefront OBJ (.obj)
GLB, glTF, OBJ, STL, PLY and VOX files can be converted to glTF, OBJ, STL or PLY, which gives 20 combinations. A format is never converted to itself, but GLB to glTF is available. GLB and VOX are input only, so there is no conversion to GLB or VOX, and FBX or 3MF files can be viewed with the viewer but not converted.
No. Reading the STL file and writing the OBJ file both happen in your browser with JavaScript. Nothing is sent to a server, and the result exists only on your device until you download it.
GLB, glTF, OBJ, STL, PLY and VOX can be converted to glTF, OBJ, STL or PLY. GLB and VOX are input only, and FBX or 3MF files can be viewed but not converted. The list of all converters below links to every available pair.
Each output format keeps only what its exporter writes. OBJ output has no .mtl file or textures, STL stores triangles only, and PLY keeps vertex colours but no textures. Only glTF output keeps materials and embedded textures. The notes above show what this pair carries over.
No. The converter reads the static model and does not export animation clips, so keyframes or skeletal animation in a GLB or glTF file are not carried over. If you need animation, export it from your original 3D software.
Only if everything is embedded in the one file you select. The converter reads a single file and cannot fetch .bin or image files stored next to it, so such a glTF may fail or lose its textures. Convert from a GLB or an embedded glTF instead.
The tool does not enforce one. Large models are limited by your device's memory and graphics hardware, and they may convert slowly or fail, especially on phones. Try a smaller or simplified file if the conversion does not finish.
Coordinates are copied without scaling, but the converter moves the model so that its bounding box is centred on the origin. glTF uses metres while OBJ, STL and PLY define no unit, so check the scale after importing.
Choose any format combination and start converting instantly
Select the format of your 3D model to start viewing instantly
Text prompt in, FBX or JSON motion draft out. First Project is $4.90 and covers 3 Fast generations.