Cobalt Share

View, print and export your CAD & 3D modeling files — free.

Share allows others to open, view, print and export Ashlar-Vellum CAD and 3D modeling files from their own Mac or Windows desktop. It displays exactly what you intended, not some translation that might be just a little different. It's especially helpful for interacting with clients or production people using AutoCAD, SolidWorks, Solid Edge, Pro/E and CATIA.

Cobalt Share is the 3D modeling edition: it also views Xenon, Argon and old Vellum Solids files (.co, .xe, .ar and .vs). It is free to download.

What it does

Opens, views, prints and exports Ashlar-Vellum CAD and 3D modeling files.
Displays files exactly as authored, not a re-translated approximation.
Also views Xenon, Argon and old Vellum Solids files (.co, .xe, .ar, .vs).
Free to download.

Will it run on your machine? The compatibility checker answers for your exact Mac or PC, and the release list shows every version we support.

Check compatibility Releases & OS support

Adapted from https://www.ashlar.com/products/share.html (read 2026-08-18).

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