STL Converter
Convert a STL file to other formats for free. Most formats need no sign-up or credit card; BLEND needs a free account.
STL (Stereolithography): A file format (.stl) for 3D printing and CAD, representing surface geometry as a mesh of triangles. It's simple, widely supported, but lacks color or texture data. Or skip the conversion entirely — browse free STL 3D models ready to download.
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Free STL 3D models
Free furniture 3D models in STL format — no upload needed.
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STL is a triangle-mesh format for 3D printing that stores only surface geometry — it has no concept of color, texture, materials or scene structure. Convert STL files to 3DM, GLTF, GLB, OBJ, OFF free in your browser — no sign-up, no watermark — or generate a STL model from a photo.
What can you convert STL to?
What is a STL file used for?
STL is a triangle-mesh format for 3D printing that stores only surface geometry — it has no concept of color, texture, materials or scene structure. It is used mainly for 3d printing and cad/cam, and opens in Cura, PrusaSlicer, Bambu Studio.
STL converter — frequently asked questions
- What is a STL file?
- STL is a triangle-mesh format for 3D printing that stores only surface geometry — it has no concept of color, texture, materials or scene structure. It is used mainly for 3d printing and cad/cam.
- How do I open a STL file?
- STL files open in Cura, PrusaSlicer and Bambu Studio and other 3D tools.
- Is the STL converter free?
- Yes. Converting STL files is free and has no watermark. Browser conversions need no sign-up (up to 20 a day) and take files up to 50 MB; FBX, SKP and BLEND exports run on our server, need a free account and take files up to 25 MB.
STL File Format Information
Detailed information about the STL file format, including its capabilities and specifications.
STL Format
STL (Stereolithography): A file format (.stl) for 3D printing and CAD, representing surface geometry as a mesh of triangles. It's simple, widely supported, but lacks color or texture data.
STL Converter Capabilities
When converting 3D model or mesh files using our STL converter, we will attempt to convert color materials into a suitable format for use in the converted file.
Information about STL format and its conversion capabilities
About the STL converter
FurniMesh's STL converter runs in your browser for most formats, using a WebAssembly glTF/3D-mesh pipeline — the file stays in your tab. FBX, SKP and BLEND exports run on our conversion server. Materials, UV maps, and scene hierarchy are preserved wherever the target format supports them. There's no sign-up for in-browser formats (up to 20 conversions a day) and no watermark.
FurniMesh natively outputs four formats — GLB, OBJ, SKP (SketchUp 2017+), and BLEND (Blender 3.0+). Bridge conversion via this converter additionally produces FBX, STL, GLTF, 3DM (Rhino), PLY and OFF, and reads IFC, DAE, 3DS and 3MF files. Use the converter to bridge between supported formats — or skip the conversion step entirely if you don't have a source file yet (the FurniMesh library ships every model in all four native formats pre-rendered).