OBJ to STL Converter
Need to convert this file type? Drop it below — or drop any other file and we'll auto-switch. Outputs are auto-deleted after 2 hours; share links expire after 4.
Preset: OBJ → STL · or drop a different file and we'll auto-switch
Or paste a link to a file
Drop multiple images to combine them into one PDF, Word document, or PowerPoint presentation — or convert each image separately.
1
Drop
Drag your OBJ file or click to browse.
2
Convert
STL is preselected, or pick a different format below.
3
Download
Get your file or share a 1-hour link.
Convert OBJ to STL online
Use this OBJ to STL converter to turn OBJ files into STL right in your browser — ideal for 3D printing, CAD exports and mesh sharing. STL is valued for being the 3D printing standard, while OBJ comes with a tradeoff: no animation.
When should you convert OBJ to STL?
- To get STL's built-in advantage: the 3D printing standard
- To move past OBJ's common limitation: no animation
- To open your files in apps that prefer STL
- To share STL files more easily
About OBJ and STL files
OBJ model
Strengths
- supports color and texture
- widely supported
Limitations
- no animation
- uses separate material files
STL model
Strengths
- the 3D printing standard
- simple and widely supported
Limitations
- no color or texture
- triangles only
OBJ vs STL
| Format | OBJ | STL |
|---|---|---|
| Compression | — | — |
| Transparency | — | — |
| Best for | 3D modeling and interchange between tools | 3D printing and CAD exports |
Related tools
Frequently asked questions
- Is this OBJ to STL converter free?
- Yes. You can convert OBJ to STL online for free, with no account and no watermark.
- Do I need to install software or sign up?
- No. The conversion runs entirely in your browser — no installs and no account required.
- Why convert to STL instead of staying with OBJ?
- STL is known for being the 3D printing standard — that's what you gain by converting instead of keeping the OBJ file.
- Are my files safe?
- Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.
- Can I convert multiple OBJ files at once?
- Yes. Drop several files to convert them in a batch and download the results as a single ZIP.