STL
Stereolithography mesh — the standard format for 3D printing.
LinksConverterSTL to OBJ Converter
Convert an STL mesh into a Wavefront OBJ file in your browser. OBJ is supported by virtually every 3D application — Blender, Maya, Cinema 4D, Unity, and more — making it the go-to format when you need to take a 3D-print model into a modelling or game engine.
Drag & drop a file hereor click to browse from your device
When to convert STL to OBJ
- Import a printable STL into Blender or Maya for editing
- Bring a model into a game engine like Unity or Unreal
- Share geometry with a tool that does not read STL
About the STL and OBJ formats
OBJ
Wavefront OBJ — a widely supported 3D geometry format.
Why use LinksConverter for this conversion
Fast cloud pipeline
Server-side ffmpeg + yt-dlp on auto-scaling workers. Most files finish in seconds, not minutes.
ClamAV scanned
Every uploaded or fetched file is virus-scanned before it ever reaches your download.
Auto-deleted after 2 hours
Files live on encrypted S3 storage for 2 hours, then are permanently purged. We never log file contents.
No sign-up, no watermark
Free for up to 10 conversions per hour with no account. Pro unlocks larger files and priority queue.
How to convert STL to OBJ
Upload or paste a STL link
Drop a STL file from your device, or paste a public URL pointing to the STL you want to convert.
Confirm OBJ as the output format
The output is pre-set to OBJ. You can adjust quality or bitrate in the advanced options if you need a smaller file.
Start the conversion
Click Convert. Our cloud workers fetch the STL, scan it for malware, and run the STL → OBJ pipeline.
Download your OBJ file
A one-time pre-signed link appears as soon as the OBJ is ready. The file is automatically deleted from our storage 2 hours later.
STL to OBJ — Frequently asked questions
STL files store only geometry — no color, texture, or material data — so the OBJ will contain the mesh shape only. If you need color and materials, convert to 3MF or GLB instead.
Yes. LinksConverter converts STL to OBJ for free with no email, sign-up, or watermark. Anonymous users get up to 10 conversions per hour; the optional Pro tier raises that to 500 and adds priority queue access.
Yes. Files are processed in an isolated worker, scanned with ClamAV antivirus, served via a one-time pre-signed URL, and automatically purged from our S3 storage after 2 hours. We never log file contents and request URLs are masked in our server logs.
Free conversions accept files up to 500 MB. Pro accounts can convert up to 5 GB in a single job. Very large files automatically chunk the upload to avoid browser timeouts.
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