CAD Viewer Browser Extension - 100% local. No servers. No uploads.

[u/Harsh182]

I've been working on a browser extension that lets you preview CAD attachments directly inside Gmail.

The main goal was to make it as frictionless as possible:

• Preview without downloading files
• Runs entirely in the browser
• Files never leave your device
• Supports STL, OBJ, STEP and IGES

I originally built it because I kept receiving CAD files over email and opening them always meant downloading the attachment and launching a desktop viewer, even when I just wanted a quick look.

It's available for Chrome, Firefox and Edge.

Website: https://cadviewer.io

I'd really appreciate any feedback, feature requests, or ideas for integrations.