Download
Umbra lives inside Obsidian as a plugin. Install it, point it at a server, and your vault syncs — encrypted end to end from the first keystroke.
Add Umbra to Obsidian from Community Plugins on desktop, and install it the same way on mobile. One plugin, every device.
In Obsidian, head to the Umbra tab in settings and choose Set up / connect.
Enter your Umbra service's HTTPS address — hosted or self-hosted — then your email and passphrase. Your key is derived locally and never sent.
If this device already has a vault and the server holds data, Umbra links them safely. Files that collide are kept as conflict copies, never overwritten — you never lose a note.