Zotero’s sync service requires a Zotero account. Once registered, attachment syncing can be configured separately using your own WebDAV storage rather than Zotero’s limited free quota.

WebDAV storage

WebDAV is an open standard that enables file access over HTTP and HTTPS. Box offers a free account with 10 GB storage, which is more than sufficient for Zotero attachment sync.

Configuring Zotero

Open Zotero and navigate to Edit > Preferences > Sync. The Sync tab has two sections: Zotero Sync Server at the top for account credentials, and File Syncing below for attachment storage.

Under Zotero Sync Server, enter your Zotero username and password.

Under File Syncing, check Sync attachment files in My Library using and select WebDAV from the dropdown. A URL field and credential fields will appear. Enter:

• URL: https://dav.box.com/dav/zotero/
• Username: your Box.com username
• Password: your Box.com password

Click Verify Server. Zotero will test the connection and confirm if it is set up correctly.