floccus

floccus is free, open-source software that syncs browser bookmarks and open tabs across supported browsers and devices. It can use Nextcloud Bookmarks, Linkwarden, KaraKeep, Git, WebDAV, Google Drive, or Dropbox as a sync backend. Sync can merge changes both ways or move them one way by uploading or downloading. Users can sync open tabs instead of a local bookmarks folder, though the feature is described as experimental and may create duplicates. Supported browser guides list Chrome, Firefox, Edge, Opera, Vivaldi, Brave, and Kiwi; Safari is not supported. Android and iOS apps are available, with the Android app in open beta. On Android, bookmarks are available within floccus rather than synced with mobile browsers. floccus syncs native browser bookmarks and does not provide a bookmark-management interface. WebDAV and Google Drive support an encryption password for end-to-end encrypted sync, but Nextcloud Bookmarks and Git do not. The selected storage provider can access stored bookmarks. Support is available through GitHub issues.

floccus offers multiple backends and sync modes for browser bookmarks and tabs. Consider its browser and mobile limitations, and which storage services provide encrypted sync, before setting it up.

floccus may suit people who want to sync native browser bookmarks across supported browsers and devices using a storage service they choose. It is less suited to users who need Safari support or a separate bookmark-management interface.

floccus is a free, open-source synchronizer for browser bookmarks and open tabs, aimed at people who want to keep their existing browser data aligned across devices. It is a strong fit for users comfortable choosing and maintaining a storage backend, but not for anyone seeking a hosted bookmark library or seamless Safari and mobile-browser support.

Overview

Rather than replacing your browser’s bookmarks, floccus synchronizes them through a service or server you select. That focused approach preserves native browser workflows and avoids ads and data collection, but it also means floccus is not a bookmark manager. There is no built-in library for organizing links, full-text search, duplicate detection or web archiving. Choose it when synchronization is the priority; choose another product when you want to curate and search a substantial link archive.

Floccus is described as free and open source. Its authors and app publishers say they do not receive the data users provide, although the third-party storage service you connect can access stored bookmarks. Debug logs remain accessible only to the user, but may contain bookmark data, server URLs and account names if shared during troubleshooting. Support is handled through GitHub issue submissions.

Key features

You can sync through Nextcloud Bookmarks, Linkwarden, KaraKeep, Git, WebDAV, Git over HTTPS, Google Drive or Dropbox. Two-way merge sync is the practical choice when several devices make independent bookmark changes. One-way sync can upload or download changes, giving you a defined source of truth when you want tighter control over which location can alter the collection.

Encryption depends on the backend. WebDAV and Google Drive support an encryption password for end-to-end encrypted sync; Nextcloud Bookmarks and Git do not. That makes backend selection a privacy decision, not merely a technical preference.

Tab syncing can use open browser tabs instead of a local bookmarks folder. Because the guide characterizes this feature as slightly experimental and warns that it can duplicate tabs, it is best treated as a convenience for moving a session between devices rather than as a dependable replacement for bookmarks.

Floccus supports Chrome, Firefox, Edge, Opera, Vivaldi, Brave and Kiwi. Safari is unsupported because of technical limitations. The browser extension handles native bookmarks, while the Android and iOS apps provide mobile access. Android is in open beta, and its app does not synchronize bookmarks with mobile browsers; it makes those bookmarks available inside the app instead.

Pricing

The floccus plan costs free. It includes free, open-source bookmark and tab syncing, with no advertised seat charge or subscription term. The important cost is external: you must provide a compatible storage service or server. That makes the plan attractive to people who already run or pay for a supported backend, but less convenient than a product that bundles hosted storage.

Platforms

Floccus is available as browser extensions for Chrome, Firefox, Edge, Opera, Vivaldi, Brave and Kiwi, plus Android, iOS and self-hosted deployments. Safari users cannot use it. On Android, the open-beta app exposes synchronized bookmarks inside floccus rather than integrating them with mobile browsers, so it is not a full cross-browser mobile workflow.

Who it's for

Floccus suits privacy-conscious users, self-hosters and people already using Nextcloud, WebDAV, Git, Google Drive, Dropbox, Linkwarden or KaraKeep. Its merge and one-way strategies also serve households or individuals who need explicit control over how changes travel between devices. It is a poor match for Safari users, readers wanting a polished bookmark-management interface, or anyone unwilling to configure a storage backend.

Pros and cons

Pros

• Free and open source: there is no subscription price, advertising or stated data collection by the maker.
• Many backends: support for self-hosted and mainstream storage services lets you choose where bookmarks reside.
• Flexible direction: merge, upload-only and download-only strategies accommodate different synchronization policies.
• Optional encrypted sync: WebDAV and Google Drive can use an encryption password for end-to-end encrypted transfers.

Cons

• Backend required: the free software does not include hosted storage, so setup and service costs can fall on you.
• No management layer: there is no search, duplicate detection, web archiving or separate bookmark interface.
• Browser gaps: Safari is unsupported, and tab sync may duplicate tabs.
• Limited mobile integration: Android is in open beta and does not sync with mobile browsers.

Alternatives

For a broader bookmark-management service, consider Bookmark Managers. Delinqs is worth choosing when you need web and API access, up to three users on its free tier, unlimited bookmarks and all features. Diigo fits readers who also need highlights, screenshots and outliners, within its free-tier quotas.

Karakeep is the better choice for a bookmark app with mobile and web interfaces, browser extensions and an optional self-hosted plan. LinkAce suits users wanting a self-hosted bookmark archive or a hosted option from €4 a month. Raindrop.io is preferable when you want unlimited bookmarks, collections, highlights and devices, plus 100 MB of monthly file uploads on its free plan.

Start.me is aimed at start pages and widgets rather than backend-controlled browser syncing. Symbaloo offers ad-supported personal bookmark pages and learning paths. Atavi is a straightforward free web service for saving as many bookmarks as you want.

Verdict

Choose floccus if you want open-source, no-cost synchronization for native browser bookmarks and can supply a compatible storage service, especially when self-hosting or backend choice matters. Look elsewhere if you need Safari, reliable mobile-browser integration, built-in search and organization, or hosted storage without configuration.