FBReader is an open source e-book reader that makes it simple to access free literature. It runs on a variety of platforms including Linux and Linux-based mobile devices such as Siemens, Motorola, Sharp, Nokia, and Samsung smartphones.
FBReader supports some *.mobi files, but does not support DRM-protected version. This means FBReader can open free Kindle books only.
FBReader requires Qt library.
Key Features
- Full screen mode.
- Screen rotation.
- Supports several open e-book formats: fb2, html, chm, plucker, palmdoc, ztxt, tcr (psion text), rtf, oeb, openreader, non-DRM’ed mobipocket, plain text, and epub.
- Reads directly from tar, zip, gzip, bzip2 archives (you can have several books in one archive).
- Supports a structured view of your e-book collection.
- Automatic library building.
- Automatically determines encodings.
- Automatically generates a table of contents.
- Keeps the last open book and the last read positions for all open books between runs.
- Automatic hyphenation (patterns for several languages are included).
- Searching and downloading books.
- CSS support for epub files.
- Text search.
- Footnotes/hyperlink support.
- Embedded images.
- Ability to use your own fonts (ttf and otf) with the software.
Website: fbreader.org
Support: Documentation, GitHub
Developer: Geometer Plus, LLC
License: GNU GPL v2

FBReader is written in C++. Learn C++ with our recommended free books and free tutorials.
Related Software
| GUI eBook readers | |
|---|---|
| KOReader | Advanced multi-format reader with excellent customisation |
| Koodo Reader | Feature-rich eBook reader and library manager |
| Foliate | Polished GTK eBook reader |
| Calibre | Powerful eBook library manager, reader and conversion suite |
| readest | Modern eBook reader with syncing and advanced reading tools |
| Thorium | Highly accessible multi-format eBook reader |
| Librum | eBook reader with synchronized library |
| Lector | Qt based e-book reader |
| Bookworm | Simple, focused GTK eBook reader |
| Arianna | KDE EPUB reader and library manager |
| crqt-ng | Fast Qt eBook reader using crengine-ng |
| CoolReader | Lightweight XML/CSS based eBook reader |
| apvlv | Vim-like graphical document viewer |
| FBReader | Makes it simple to access free literature |
Read our verdict in the software roundup.
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