STL Converter
Convert STL files to and from other formats right in your browser. Free, private and with no upload.
Drag and drop your files here
or click to browse local files (large files supported, limited only by browser RAM)
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What is a STL file?
.stl (Stereolithography) is the standard mesh format for 3D printing and CAD, storing triangulated surfaces.
| Feature | STL (Stereolithography) |
|---|---|
| Materials and textures | No |
| Animation and rigging | No |
| Best for | 3D printing and CAD workflows |
| Opens in | Cura, PrusaSlicer, Bambu Studio and CAD software |
STL is a 3d model format.
Convert STL to other formats (5)
Convert other formats to STL (10)
Why convert here
- Your files never leave your device: conversion runs locally with WebAssembly.
- No sign-up, no watermark and no file size limit beyond your browser's memory.
- Batch conversion with parallel workers, plus quality, size and codec settings.
Looking for something else? Browse the full converter directory.