OBJ to STL Converter – Free Online Tool
Convert OBJ to STL online for free. No upload needed, conversion happens entirely in your browser.
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Frequently asked questions
- How do I convert OBJ to STL?
- Drop your OBJ file on the drop zone or click to upload. The tool parses the OBJ in your browser, builds a binary STL, and shows a 3D preview. Click "Download STL" to save the file. The output keeps the same base name with a .stl extension. No data is sent to any server.
- Are my files sent to a server?
- No. Conversion runs entirely in your browser. Your OBJ file never leaves your device.
- Does it support OBJ with quads?
- Yes. Quad faces (four vertices) are split into two triangles automatically.