ymarks is a free and open source browser extension developed by tux0r. It is available for several modern web browsers, including Chrome. This add-on allows users to synchronize their browser's bookmarks with an SQLite3 database. The database can be hosted locally or on an intranet, providing flexibility and convenience.

One of the key features of ymarks is its focus on privacy. The extension is designed to be a single-user system, reducing complexity and increasing privacy for the user. However, it is technically possible to run multiple instances of ymarks simultaneously if desired.

With ymarks, users can easily manage and organize their bookmarks across different devices and platforms. The extension provides a seamless experience for bookmark synchronization, ensuring that users can access their favorite websites from anywhere.

Overall, ymarks is a reliable and efficient browser extension that offers a simple and effective solution for bookmark synchronization. Whether you want to keep your bookmarks in sync across devices or maintain a backup of your bookmarks, ymarks is a great choice.