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EnglishWhat Is Floccus bookmarks sync?
Updated
Floccus is a free, open-source tool that syncs bookmarks and tabs across browsers and devices. It works by connecting your browser to a storage backend you choose — Nextcloud, Linkwarden, KaraKeep, Git, WebDAV, Google Drive, or Dropbox — rather than routing your data through a company server. It is aimed at people who want cross-browser bookmark syncing without ads, data collection, or a vendor holding their data.
What Floccus actually does
Floccus keeps a bookmark tree in sync between your browsers and a storage location. You install the browser extension, point it at a backend, and it reconciles bookmarks across every device configured the same way. The project also offers apps for iOS and Android, and tab syncing is supported through separate guides.
The privacy model is the core of the pitch: you decide where your data lives, and the software "simply syncs and gets out of your way." There are no ads and no data collection.
Two limitations are worth knowing before you commit:
- Safari is not supported due to technical limitations.
- Mobile support is partial. The mobile app syncs to a folder inside the app, not to mobile browsers, and Floccus support across mobile browsers is described as sparse.
Supported storage backends
The feature matrix on the site lists which backends support what. The table below summarizes the main options and their notable capabilities.
| Backend | Storage format | End-to-end encryption | Keeps order | Notes |
|---|---|---|---|---|
| Nextcloud Bookmarks App | — | Yes | Yes | Since v3.1.0 |
| Linkwarden | — | No | Yes | Since v5.3.0 |
| Karakeep | — | No | Yes | Since v5.6.0 |
| WebDAV share | xbel, html | Yes (marked as conditional) | Yes | Since v3.0.0 |
| Git over HTTPS | xbel, html | No | Yes | Since v5.1.0 |
| Google Drive | xbel, html | Yes (marked as conditional) | Yes | Since v4.6.0 |
| Dropbox | xbel, html | Yes (marked as conditional) | Yes | Since v5.9.0 |
| OneDrive | — | — | — | Planned |
The matrix also tracks bookmark handling for http/https, ftp/ftps, javascript, data, and file bookmark types, which matters if you keep unusual bookmark entries. Check the matrix directly if those types are important to you.
Who it is for
Floccus fits you if:
- You use more than one browser or device and want one bookmark set everywhere.
- You already self-host something like Nextcloud, Linkwarden, or Karakeep, or you have a WebDAV share or Git repo you can use.
- You want to avoid a bookmark-sync service that collects data.
It fits less well if:
- You rely on Safari.
- You expect bookmarks to sync into mobile browsers rather than into a separate app.
- You want a zero-setup service — every backend here requires you to have or create a storage location first.
How to get started
- Pick a backend. If you self-host, Nextcloud Bookmarks, Linkwarden, or Karakeep are the natural choices. If you don't, Google Drive or Dropbox requires no server. WebDAV and Git suit people who already run those services.
- Install the extension in each browser you want to sync, plus the mobile app if you need it.
- Configure the same backend and credentials on every device so they all reconcile against one source.
- Verify by adding a bookmark on one device and confirming it appears on another after a sync.
The site's "Get started" and tab-syncing guides cover the configuration steps in detail. If something breaks or you want a feature, the project takes issues and pull requests, and translation help is also welcome — it is volunteer-maintained, created by Marcel Klehr.
One signal of the project's standing: the site notes that Floccus won a Nextcloud Community Award 2026.