STL to OBJ Converter

OBJ opens in more 3D modelling apps than STL. This free STL to OBJ converter runs entirely in your browser, so your files are never uploaded.

STL is the standard format for 3D printing. OBJ is a simple 3D geometry format almost every 3D app supports.

How to convert STL to OBJ: Choose your STL file, or drop it onto the converter. The output is already set to OBJ. Convert and download your OBJ file.

Is this STL to OBJ converter free? Yes. It's free to use, with no sign-up and no watermark.

Are my files uploaded? No. The conversion runs in your browser, so your files never leave your device.

What changes when I convert STL to OBJ? STL has no materials, so the OBJ is geometry only.