Free · No account · Runs in your browser

Convert 3D models
without uploading them

Pick where your model is coming from and where it needs to go. The conversion runs on your own machine, in this tab.

Convert from

Convert to

Not sure of the target? Open the model first, or browse all 75 formats.

Nothing leaves your device Free, no sign-up, no ads Works with your Wi-Fi off

Popular conversions

See every pairing

FBX to OBJ FBX to GLB OBJ to STL STL to OBJ MAX to FBX GLB to USDZ STEP to STL SKP to GLB

How it works

Three steps, no install, no sign-in.

01
Add your file
Drag the model in, with its textures and sidecars if it has them. Nothing is uploaded: it is read where it already sits.
02
Check the preview
The model loads in the viewport before you commit, so a bad axis or a missing texture shows up here rather than downstream.
03
Save it
The new file is written in the tab and lands in your downloads folder. No link, no expiry, no account.

Four tools, one promise

None of them has a server behind it.

Convert

Change the format

Between 75 readable and 19 writable formats, with a page for each pairing that says what survives.

Compress

Make it lighter

Mesh simplification, texture re-encoding and Draco, with a before-and-after report rather than a promise.

Render

Turn it into images

Studio lighting, camera presets, transparent backgrounds and turntables, drawn by the GPU you already own.

View

Look inside it

The scene hierarchy, node and material properties, and a preview of every texture map.

What each format can actually hold

The full table

Format	Where you meet it	Materials	Textures	Animation
STL	Cura, PrusaSlicer, Bambu Studio	No	No	No
STEP	SolidWorks, CATIA, Fusion 360	Yes	No	No
GLB	three.js, Babylon.js, Godot	Yes	Yes	Yes
OBJ	Blender, Maya, Cinema 4D	Yes	Yes	No
FBX	Unity, Unreal Engine, Maya	Yes	Yes	Yes
USDZ	AR Quick Look on iOS, Reality Composer, Safari	Yes	Yes	Yes

Why nothing is uploaded

Most online converters copy your model onto a server, convert it there and ask you to trust that it gets deleted. That is not acceptable for work you have not published yet. Here your file is read, parsed, re-encoded and drawn by JavaScript, WebAssembly and WebGL running inside your own browser tab. There is no upload endpoint to trust, because there is no upload.

You can check that in ten seconds: load any page on this site, turn your Wi-Fi off, and use it. It still works. Every one of the 75 formats has also been loaded through the viewer against a real file, with the results published in full, failures included.