Convert STL meshes to Wavefront OBJ in your browser. Open the result in Blender, Maya, Cinema 4D, or any 3D tool. Privacy-first — zero upload.
Drop an STL file into the converter
STLLoader parses the geometry, then we serialise vertices and faces to OBJ text
Download the OBJ — ready for any DCC application
0 bytes uploaded. STL to OBJ Converter runs entirely in your browser using three.js and WebGL. Your meshes never leave your device.
OBJ is text-based, human-readable, and supports vertex grouping and material references. Many traditional 3D pipelines prefer OBJ over STL.
OBJ is always text — it has no binary format. The output is plain ASCII you can open in any text editor.
Yes. We recompute smooth vertex normals from the STL face data and emit them as vn lines in the OBJ.
Convert Wavefront OBJ files to STL for 3D printing slicers (Cura, PrusaSlicer, Bambu Studio). Browser-based, zero upload, free.
Open toolConvert STL files to GLB (binary glTF) directly in your browser. Smaller, faster, and AR-ready. Zero upload — your meshes never leave your device.
Open toolConvert ASCII STL files to compact binary STL — typically 5× smaller. Faster to load, cheaper to store. 100% browser-based, no upload.
Open tool