STL Viewer

Local preview for STL meshes used in 3D printing.

STL Viewer

Local preview for STL meshes.

Drop a model file here
File
Size
Meshes
Triangles
Vertices
Bounds
Load a model to preview

What can you do with it?

Inspect STL Viewer

Local preview for STL meshes used in 3D printing.

Pre-delivery check

Verify mesh bounds before handoff

Preview without installs

Open in a browser on any device

Format sanity check

Confirm the asset before import

Export deliverables

Download GLB and other targets

Local-first

Models are parsed and rendered locally in the browser; file bytes are not uploaded by default.

Why choose this tool?

3D viewport

Orbit, wireframe, grid, auto-rotate

STL Viewer

Local preview for STL meshes used in 3D printing.

Downloadable outputs

Export converted or generated models

Clear privacy stance

Models are parsed and rendered locally in the browser; file bytes are not uploaded by default.

How to use?

1

Load input

Drop a model or type text for extrusion

2

Tune view / options

Orbit and set export or optimize level

3

Export or verify

Download results or confirm preview

FAQ

Are models uploaded?
Preview/convert/optimize stay local by default. LAN transfer only relays signaling; file bytes go peer-to-peer over WebRTC when connected.
Which formats?
GLB/GLTF, OBJ, STL, FBX for preview; USDZ varies. Convert exports among OBJ/STL/GLB.
Why do some FBX/USDZ fail?
Browser loaders are limited; complex animations or external textures may fail. Convert to GLB first.
Is optimize production-safe?
It is naive triangle thinning for previews, not industrial remeshing.

STL Viewer: browser 3D workflow

Local preview for STL meshes used in 3D printing.

Related

See the 3D category, model convert, and GLB preview.

Use the workspace above to start.