FB2
FictionBook document
FB2 is an XML-based electronic book format designed for storing fiction literature with preserved structural markup.
What is FictionBook document?
The FictionBook format (.fb2) was created in Russia in the early 2000s by a team led by Dmitry Gribov. It is based on XML, which means the entire book content, including metadata, structure, and sometimes binary images, is wrapped in plain text tags. This makes FB2 independent of specific hardware or reading software, allowing it to be easily displayed, indexed, or converted on almost any device. Using tools like ConvertX, you can seamlessly convert FB2 files to formats like EPUB or DOCX for better compatibility.
Advantages
- Strict XML structure preserves chapters, sections, and metadata
- Independent of hardware and rendering software
- Plain text nature makes it easy to edit and parse programmatically
- Supports embedded images within the XML structure
Limitations
- Not natively supported by Amazon Kindle devices without conversion
- Can struggle with complex academic layouts or heavy tables
- Large embedded images can significantly inflate file size
How to open FictionBook document files
Calibre
FBReader
AlReader
Cool Reader
Sumatra PDF
Common use cases
- Reading fiction novels and literature on mobile devices and e-readers
- Archiving digital libraries due to open and readable plain-text structure
- Converting legacy e-books to EPUB or DOCX formats for modern readers
- Publishing and distributing self-published fiction online
FB2 converters
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Frequently asked questions
FB2 stands for FictionBook, an XML-based format specifically designed for storing and reading books.
You can open FB2 files using dedicated e-reader software like Calibre, FBReader, or Sumatra PDF.
Yes, you can easily convert FB2 files to EPUB or DOCX using conversion tools like ConvertX.
Yes, images can be stored directly inside the FB2 XML file as Base64-encoded binary data.