# Self-hosted alternatives to Zotero.org sync service

> 1 self-hostable, open-source alternative to Zotero.org sync service, ranked by score.

- [altero](https://selfhost.directory/project/altero)

## Also in File Sync

Not listed as Zotero.org sync service alternatives, but from the same category:

- [seafile-server](https://selfhost.directory/project/seafile-server): Seafile Server is a self-hosted open-source platform for file synchronization, sharing, and collaborative document editing with end-to-end encryption and team workspaces.
- [any-sync-bundle](https://selfhost.directory/project/any-sync-bundle): A self-hosted, open-source sync backend for Anytype that bundles all sync components into one deployable unit with built-in database and cache.
- [Synch](https://selfhost.directory/project/synch): Synch is a self-hosted, open-source alternative to Obsidian Sync that encrypts notes locally before syncing across devices with version history and conflict merging.
- [zotero-webdav-server](https://selfhost.directory/project/zotero-webdav-server): A self-hosted WebDAV server using Caddy and Tailscale that enables file syncing for Zotero desktop and iOS apps without relying on Zotero's paid storage.
- [focus-compass-sync-server](https://selfhost.directory/project/focus-compass-sync-server): Self-hosted Node.js sync server for Focus Compass using Hocuspocus/Yjs with SQLite, bearer tokens, admin UI, backups, and optional MCP for AI clients.
- [icloud](https://selfhost.directory/project/icloud): Open-source, self-hosted Docker iCloud client that keeps a local copy of iCloud Drive and Photos, with scheduled sync, 2FA re-auth and an optional web dashboard.

All 40 File Sync projects: https://selfhost.directory/file-sync

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Source: https://selfhost.directory/alternative-to/zoteroorg-sync-service