Download Cairn

Cairn runs on Windows today. Versions for macOS and Linux are planned for later.

Windows 10 or 11 (64-bit)
Cairn is in a small invited test before launch, and testers receive their download link by email.
Email us to ask about joining the test
macOS
Planned for later.
Linux (AppImage)
Planned for later.

If Windows says the publisher is unknown

Windows may say the publisher is unknown — Cairn isn't code-signed yet. Choose More info, then Run anyway.

What Cairn needs

Windows 10 or 11, 64-bit.
A licence key, to activate Cairn. See pricing
An internet connection to activate, and now and then after that so Cairn can check your licence. It works offline in between.