You can keep your Zotero library synced to the Zotero website in order to access it from any computer.
- The first step is to create an account on the Zotero website.
- Then go to Edit → Settings → Sync.
- Fill in your user name and password and check Sync Automatically. Data syncing (references, notes, links, tags) is free and has no storage limit.
- You can also sync your file attachments. Note that the free storage limit is 300 MB. If you need more storage, you can purchase additional cloud storage from Zotero.