OBJ TO STL CONVERTER
Convert OBJ files to STL for 3D printing. This strips away material information and exports only the geometry, exactly what 3D printers need.
OBJ
STL
Click to upload or drag and drop
OBJ
Max size: 50MB
Conversion Notes:
- Textures will be lost in the conversion.
- Material information will be lost.
- Vertex colors will be discarded.
- STL format only contains geometry data.
Your files are processed entirely in your browser. Nothing is uploaded to our servers.
How to Convert OBJ to STL
Preview Your Model
Download STL File
Why Use Our Converter?
Instant Conversion
Convert your files in seconds with our optimized WebGL-based converter. No waiting for server processing.
100% Private
Your files never leave your browser. All processing happens locally on your device for complete privacy.
Free & Unlimited
Convert as many files as you need with no limits, no accounts, and no watermarks.
OBJ vs STL
OBJSource Format
Wavefront OBJ
OBJ is a simple, widely-supported 3D geometry format. It stores vertex positions, normals, and texture coordinates in plain text, making it easy to parse and edit.
3D printingCAD softwareLegacy applicationsSimple models
STLTarget Format
Stereolithography
STL is the standard format for 3D printing. It describes only the surface geometry using triangular facets, without colors, textures, or other attributes.
3D printingRapid prototypingCAD/CAMManufacturing
Other 3D Converters
GLBGLTF
GLB to GLTF
Convert GL Transmission Format Binary to GL Transmission Format
GLBOBJ
GLB to OBJ
Convert GL Transmission Format Binary to Wavefront OBJ
GLBSTL
GLB to STL
Convert GL Transmission Format Binary to Stereolithography
GLTFGLB
GLTF to GLB
Convert GL Transmission Format to GL Transmission Format Binary
GLTFOBJ
GLTF to OBJ
Convert GL Transmission Format to Wavefront OBJ
GLTFSTL
GLTF to STL
Convert GL Transmission Format to Stereolithography
Frequently Asked Questions
Yes, our converter is completely free to use with no limits on the number of conversions. No account or signup required.
No! All processing happens entirely in your browser using WebGL and JavaScript. Your files never leave your device, ensuring complete privacy and security.
You can convert files up to 50MB in size. Larger files may require desktop software for processing.
STL format only supports geometry (vertices and faces). Textures, materials, and colors are not included in STL files as they are designed for 3D printing.
Yes! STL is the standard format for 3D printing. The converted file can be opened in any slicing software like Cura, PrusaSlicer, or Simplify3D.
