STL→OBJConverter
Convert your STL files to OBJ format instantly. Free, fast, and secure - your files never leave your browser.
↔ Convert OBJ to STL insteadDrop file or click to browse
Max 100MB • Auto-deletes after 3 min
How to Convert STL to OBJ
Upload Your File
Drag & drop your STL file or click to browse. Files up to 100MB are supported.
Convert
Click "Convert to OBJ" and wait a few seconds for processing.
Download
Download your converted OBJ file instantly. No registration needed.
Why Convert STL to OBJ?
Converting STL to OBJ enables cross-platform CAD compatibility, letting you share 3D models with collaborators using different engineering and design software.
About STL and OBJ
What is STL?
STL (Stereolithography) is the standard file format for 3D printing, describing only the surface geometry of 3D objects as a mesh of triangles.
What is OBJ?
OBJ (Wavefront Object) is a universal 3D model format that stores geometry, textures, and material data. It's widely supported by 3D modeling and rendering software.
Frequently Asked Questions
How do I convert STL to OBJ?
Upload your STL file using the converter above, then click "Convert". Your file will be processed and you can download the converted OBJ file immediately. The entire process takes just seconds.
Is it free to convert STL to OBJ?
Yes, ModConvert is completely free to use. There are no hidden charges, no registration required, and no watermarks on your converted files.
Is my STL file safe when converting?
Absolutely. Your files are processed securely and are never stored permanently on our servers. Files are automatically cleaned up after conversion to protect your privacy.
What is the maximum file size for STL to OBJ conversion?
You can convert STL files up to 100MB in size. This covers most common use cases for cad files.
Can I convert multiple STL files at once?
Yes, you can upload and convert multiple STL files. Each file will be converted to OBJ format individually for the best quality results.