filoshi.com / formats / stl-to-obj

Convert STL to OBJ

The STL format is commonly used by specialized software. By converting it to OBJ, you reduce file size and increase compatibility. Filoshi runs this conversion completely offline.

NATIVE ENGINE REQUIRED
Desktop App Required
Converting STL to OBJ requires complex native processing libraries that cannot run purely in the web browser.
Get Filoshi Desktop - $14.90
Windows, macOS, and Linux
Source Format

What is STL?

Stereolithography (.stl) - STL is the standard file format for 3D printing. It describes the surface geometry of a 3D object using triangular facets.

Common use: 3D printing, rapid prototyping, CNC machining

Output Format

What is OBJ?

Wavefront OBJ (.obj) - OBJ is a widely used 3D model format that supports geometry, textures, and material definitions. It is one of the most universal 3D exchange formats.

Common use: 3D modeling exchange, game assets, CAD collaboration

Frequently Asked Questions

Is converting STL to OBJ free?+
Converting STL to OBJ requires the Filoshi desktop app, which is a one-time $14.90 purchase. This gives you unlimited conversions across 3,332+ format pairs with no subscription or per-file fees.
Does converting STL to OBJ lose quality?+
It depends on the formats involved. If both STL and OBJ use lossless compression, no quality is lost. If the conversion involves a lossy format, some quality reduction may occur, but Filoshi uses optimized settings to keep quality loss minimal. The conversion runs entirely on your machine, so there are no server-side compression artifacts.
Can I convert STL to OBJ without uploading my file?+
Absolutely. Filoshi processes everything locally on your computer. Your STL files are never uploaded to any server. The desktop app bundles all conversion engines and works completely offline.
How long does it take to convert STL to OBJ?+
Most conversions complete in seconds. Larger files (like high-resolution video) may take a bit longer depending on your computer's hardware. Since Filoshi runs locally, there is no upload or download wait time, which is significantly faster than online converters.
Can I batch convert multiple STL files to OBJ?+
Yes, the Filoshi desktop app supports batch conversion. You can drop an entire folder of STL files, select OBJ as the output format, and convert them all at once. Each file gets its own progress bar.

Related Conversions

Other STL conversions

Convert to OBJ