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3DS file format (.3ds)

3D Studio (.3ds)

What is a 3DS file?

The .3ds format comes from Autodesk 3D Studio for DOS and is one of the oldest mesh formats still in circulation. Despite hard limits — 16-bit vertex counts, 8.3 material names — enormous archives of legacy models exist in .3ds, so being able to read it still matters.

  • Vast archives of legacy assets
  • Small files, simple structure
  • Readable by nearly every 3D package

Best for: Recovering geometry from legacy model libraries.

View 3DS files online

Open .3ds files in the free online 3DS viewer — assembly tree, section views and display modes, entirely in your browser.

How to open a 3DS file

  1. Open the online 3DS viewer. It runs in your browser, so there is no software to install and no account to create.
  2. Drop your .3ds file in. The file is parsed locally and never uploaded. Inspect it with the assembly tree, section views and display modes.
  3. Convert it if you need another format. Press Convert to turn 3DS into STL, then download the result straight from your browser.

Convert 3DS to other formats

3DS to STL3DS to OBJ3DS to PLY3DS to GLB3DS to glTF3DS to 3MF3DS to OFF3DS to USDZ

Frequently asked questions

How do I open a .3ds file?

Drop it into the free online 3DS viewer on this site — it renders in your browser with an assembly tree and section views, and the file is never uploaded. No software install needed.

Does 3DS store units and colors?

Units: no. Colors/materials: basic materials. Geometry is stored as polygon mesh.

How do I convert 3DS to STL?

Use the free 3DS to STL converter: drop the file, press Convert, download. Everything runs locally in your browser — no upload, no signup.

What is 3DS best used for?

Recovering geometry from legacy model libraries.

What are the main limitations of 3DS files?

The format has no declared units and carries only basic materials and limited animation data. It is useful for legacy archives, but modern scene formats preserve hierarchy and appearance more reliably.

Can 3DS store animation?

Limited. The conversion pipeline on this site handles static geometry, hierarchy and flat colors only, so it does not write or display animation tracks.