The best open source alternative to Pinboard is Raindrop.io, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Pinboard and 19 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Pinboard are wallabag (Free, Open Source), Memex (Freemium, Open Source), ArchiveBox (Free, Open Source) and Shaarli (Free, Open Source).
This extension indexes all your bookmark items once and updates its indexing database when a change occurs in your bookmark tree like a new bookmark being added, removed or modified. This database can then be used to find matching terms using the extension's popup window.
This app provides you with a web interface for collecting and organizing bookmarks to the places on the web that are precious to you. You can browse and filter your bookmarks via tags and folders and by using the built-in search feature.
linkding is a simple bookmark service that you can host yourself. It supports managing bookmarks, categorizing them with tags and has a search function. It provides a bookmarklet for quickly adding new bookmarks while browsing the web.
Shaark is a self-hosted platform to keep and share your content: web links, posts, passwords and pictures. All of your data can be private, public or both and can be browsed by tags or all-in-one search.
Sorted is an extension for Firefox. Use this if you find yourself manually creating bookmark folders. Just enter the words commonly occurring in your bookmark titles and this extension will automatically create folders and move your bookmarks.
A pinboard for audiovisual media. Collect, play, and share multiple platforms in one place. Features Accessible anywhere. Works on mobile, tablet, and desktop devices. No Wi-Fi, no problem. Works offline without internet access.