ob-vaults/learn obsidian/obsidian-docs/Obsidian Sync/Local and remote vaults.md

Obsidian stores your notes in a local vault on your computer. If you want to access your notes from other devices, you need to share your local vault with those devices.

Introduction to Obsidian Sync makes this easier by letting you synchronize your local vault with a remote vault that lives on Obsidian's servers.

You can connect multiple local vaults to your remote vault. When you make a change to a local vault, that change is saved to the connected remote vault. Your change is then synced across all the local vaults you've connected to that remote vault.