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Published July 15, 2019

I’m proud to announce my cross-browser bookmark syncing extension called syncmarx is finally open source on GitHub!

syncmarx logoExtension Source Code:

Backend API:

I’ve received a ton of positive feedback over the past year which drove me to add quite a few features since its initial release – including the ability to sync to Google Drive and Box. Sadly with no sign of XMarks ever returning, syncmarx has become a go-to replacement for many, including myself. Now that the extension has stabilized significantly, I decided it’s time to contribute to the open web and make the source code public. I encourage anyone interested in the project to log issues, submit pull-requests, or provide feedback.

I should add that I definitely think services like syncmarx that let you you “bring-your-own-backend”, so to speak, could become a major player in the future of tech. So here’s to a long life ahead for bookmarks synchronization everywhere!

If you’re interested in grabbing the extension yourself, it’s available for the desktop versions of Chrome and Firefox:



  1. Mario Mario

    Great work! Are there any plans to support Safari too?

    • Greg McLeod Greg McLeod

      Thanks! Currently Safari doesn’t support the Web Extension API, so Safari would need its own section of the codebase. I haven’t prioritized this yet but it’s certainly something that could happen.

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