Free Online STL to OBJ Converter
Choose an .stl file and export its existing triangular mesh as .obj locally in your browser. No MTL file, textures, or authored materials are generated.
Choose Your 3D Model
Drag and drop your file here or click to choose
- Local browser processing
- Files stay on your device
- Unlimited conversions
- Maximum file size: 50 MB
The converter exports the existing STL mesh as OBJ geometry. It does not create an MTL file or textures, and it does not repair, remesh, or simplify the model.
Convert STL to OBJ locally in your browser without installing software or creating an account. Your source file stays on your device throughout the conversion. You can make unlimited conversions, with a maximum source-file size of 50 MB. The output contains the mesh and scene data supported by OBJ, so review the converted file in your target software before using it in a production workflow.
STL stores a triangulated surface mesh without standard texture or material data. This converter exports the existing mesh as an OBJ file locally in your browser. The output can be opened in software that supports OBJ, but no MTL file, textures, UV layout, or authored materials are generated during conversion.
How to Convert · STL → OBJ
Choose Your STL File
Choose the file area or drag and drop your STL file to begin. Files up to 50 MB are processed locally in your browser and are never sent to a server.
Convert STL to OBJ
Click the Convert button to read the supported data in your STL file and export it in OBJ format. Processing time depends on the file size, mesh complexity, and available browser memory.
Download Your OBJ File
When conversion finishes, download the new OBJ file to your device. Open it in your target software to review the geometry, scale, materials, and other format-dependent data before continuing your workflow.
Why Choose Our Converter
Fast STL to OBJ Conversion
Our STL to OBJ converter processes files quickly using advanced algorithms specifically optimized for STL to OBJ conversion. Convert your STL files to OBJ format in seconds, not minutes. The STL to OBJ conversion engine handles even complex 3D models with thousands of polygons efficiently and accurately.
Check the exported model
Only data supported by the loader and output format can transfer. Inspect the result in your target application; conversion does not repair a mesh or certify it for printing.
Browser-Based STL to OBJ
No software download or installation needed for STL to OBJ conversion. Our converter runs entirely in your web browser for maximum privacy, security, and convenience. Your STL files never leave your computer during the STL to OBJ conversion process - everything happens locally.
100% Free STL to OBJ Converter
Make unlimited STL to OBJ conversions with no registration or watermark. Each source file can be up to 50 MB, and all processing runs locally in your browser.
Format Comparison
Stereolithography
STL is the standard format for 3D printing. STL files describe only the surface geometry of 3D objects without color or texture. STL format is essential for 3D printing workflows.
- 3D printing standard format
- Binary or ASCII encoding
- Geometry only
- Wide printer support
- Simple triangulated mesh
Wavefront OBJ
OBJ is a simple, widely-supported 3D model format. OBJ files store geometry data including vertices, normals, and texture coordinates. OBJ format is compatible with most 3D software.
- Universal 3D format
- Supports texture coordinates
- Material file support (.mtl)
- Human-readable ASCII
- Broad software compatibility