ymarks
ymarks is free bookmark-syncing software built around a server you run and a browser extension client.
What ymarks is
ymarks is free bookmark-syncing software built around a server you run and a browser extension client. The server stores bookmarks in an SQLite3 database that can be hosted locally, on an intranet, or on the internet. To connect, the extension requires the server hostname, port, and PIN; the listed local defaults are port 8888 and PIN 12345. Downloading bookmarks replaces the browser’s existing bookmarks with those on the server, rather than adding them incrementally. Firefox and Vivaldi are described as semi-officially supported, while Chrome, Opera, and Edge may or may not work. The system is intended for one user, and its FAQ says additional users cannot be added. A precompiled server binary is available for Windows; users of other operating systems are directed to build from source. There is no version for mobile Firefox. The maker says the single-user design aims to reduce complexity and increase privacy, while the homepage cautions that downloads may not be thoroughly tested. The project uses the CDDL-1.0 license.
Good
- Stores bookmarks in a locally hosted or network-accessible database
- Free and open source
- Firefox and Vivaldi have semi-official support
- Single-user design is intended to increase privacy
Watch out
- Cannot add more than one user
- Downloads may not be thoroughly tested
- Browser support for Chrome, Opera, and Edge is uncertain
- No mobile Firefox version
Who it suits
ymarks suits a single user who wants to run a bookmark-syncing server and use a browser extension. It is for people comfortable with the listed setup details and uncertain support for some browsers.
Verdict
ymarks gives a single user control over where bookmark data is stored, but syncing replaces existing browser bookmarks. Check browser support and the build requirements for your operating system before setting it up.
Plans and prices
From ymarks's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free and open source | Free | single-user system · downloads are not thoroughly tested |
The facts
Each one read from ymarks's own pages, with the date it was checked.
What it does
- Bookmark replacement
- The download process replaces browser bookmarks with the bookmarks stored on the server; there are no incremental bookmarks.checked 11 Oct 2026
- Build system
- A 2025 news post says the server build now uses Conan 2.checked 11 Oct 2026
- License
- A 2020 news post says the project replaced the WTFPL license with CDDL-1.0.checked 11 Oct 2026
- Mobile support
- The FAQ says there is not yet a version for mobile Firefox.checked 11 Oct 2026
- Privacy model
- The maker says the single-user design is intended to reduce complexity and increase privacy.checked 11 Oct 2026
- Purpose
- ymarks synchronizes browser bookmarks with a server component you run and a client component installed in your browser.checked 11 Oct 2026
- Security maintenance
- A 2018 post advised rebuilding ymarks with SQLite 3.26.0 or higher to address a remote execution vulnerability in SQLite.checked 11 Oct 2026
- Security note
- A 2019 news post says ymarks works without exposing its SQLite database to the internet.checked 11 Oct 2026
- Setup
- The browser extension requires the server hostname, port, and PIN; the listed local defaults are port 8888 and PIN 12345.checked 11 Oct 2026
- Single user
- ymarks is intended as a single-user system, and its FAQ says you cannot add more than one user.checked 11 Oct 2026
- Storage
- The server stores bookmarks in an SQLite3 database that can be hosted locally, on an intranet, or on the internet.checked 11 Oct 2026
- Support
- The contact page directs users to the maker’s Keyoxide page for current support contact options.checked 11 Oct 2026
- Testing status
- The homepage cautions that downloads are not as thoroughly tested as users might expect.checked 11 Oct 2026
Where it runs
- Browser support
- The site says Firefox and Vivaldi are semi-officially supported; Chrome, Opera, and Edge may or may not work.checked 11 Oct 2026
- Server platforms
- The site offers a precompiled server binary for Windows and directs users on other operating systems to build from source.checked 11 Oct 2026
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