Update (October 2026): Unmark’s hosted service no longer accepts new sign-ups. For my current bookmarking app, see Rinku, its free, open source, local-first successor.

I’ll have more to say soon, but we’re accepting requests for invites to Unmark – an open source to-do app for bookmarks. We’re slowly sending out invitations and are looking for people that collect/share a lot of links and willing to provide feedback.