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STL to OBJ Converter

Convert STL (.stl) to OBJ (.obj) via a free public conversion API from the browser. UniConvert is come-convert-leave: no account and no permanent file library.

Open the interactive STL to OBJ Converter (loads automatically when JavaScript is available).

How to convert STL to OBJ

Step 1. Choose a .stl file from your device.
Step 2. Confirm the output format is .obj — this page is already set to STL → OBJ.
Step 3. Start the conversion, then preview, copy, or download the .obj result. Nothing is kept for later.

Why convert STL to OBJ here

STL → OBJ uses a free public API called directly from the page — no UniConvert servers in the middle.
Category: 3D Models — Mesh and scene formats for 3D pipelines, gated by real engine support.
No signup, no subscription, and no permanent storage of your files on UniConvert.
Status: available now.

STL to OBJ FAQ

Is this STL to OBJ converter free?

Yes. UniConvert does not require an account for STL → OBJ. Ads may appear to keep the site free.

Do you store my STL files?

Files for this pair are sent to the free conversion provider for processing and are not stored by UniConvert afterward.

What is the difference between .stl and .obj?

.stl is treated as the input format and .obj as the output. Use this page when you specifically need STL → OBJ rather than a generic upload form.

Can I convert other formats in 3D Models?

Yes — open the 3D Models category for other pairs, or use Convert a file to pick any available source and target.