Open source fb2 projects
Every project in the registry tagged fb2, ranked by real GitHub adoption.
An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Cervantes, Kindle, Kobo, PocketBook and Android devices
A modern ebook manager and reader with sync and backup capacities for Windows, macOS, Linux, Android, iOS and Web
Render e-books in the browser
Related tags
Frequently asked questions
How many open source fb2 projects are there?
This registry tracks 3 projects tagged fb2, with 59,090 GitHub stars between them. The most-adopted is koreader at 29,761 stars.
Are these fb2 projects free to use?
Yes — 3 of the 3 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which fb2 project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these fb2 projects still maintained?
2 of the 3 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.