STL Converter
The universal 3D printing mesh format. Convert STL files into other formats, or write STL files from any supported input, all inside your browser.
- Private by designFiles stay on your device.
- No queueConversion starts instantly.
- No sign upNo account, no limits per day.
What is STL?
STL stores a model as a flat list of triangles with no units, colors or scene structure. Its simplicity is exactly why every slicer and every 3D printer on the market reads it, and why it is still the default export target for mechanical parts.
Typical uses
- 3D printing and slicing
- Rapid prototyping
- Mesh repair pipelines
Supported by
- Cura
- PrusaSlicer
- SolidWorks
- Fusion 360
- Blender
Format details
- Extensions
- .stl
- Full name
- Stereolithography
- Category
- Triangle mesh
- Encoding
- Binary or text
- MIME type
- model/stl
- Direction
- read and write
Questions
What is a .stl file?
STL stores a model as a flat list of triangles with no units, colors or scene structure. Its simplicity is exactly why every slicer and every 3D printer on the market reads it, and why it is still the default export target for mechanical parts.
Which applications use STL?
Cura, PrusaSlicer, SolidWorks, Fusion 360, Blender all work with .stl files.