Click the "Select File" button above, and choose your FB2 file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.
Convert FB2 to another file type
The converter easily converts your FB2 e-books to various formats - free and online. No Calibre or or other E-Book software needed.
FB2 to MOBI
FB2 to EPUB
FB2 to PDF
FB2 to TXT
FB2 to AZW3
FB2 to DOCX
FB2 to LIT
FB2 to OPML
FB2 to TEX
FB2 to HTML
FB2 to BIB
FB2 to CONTEXT
Convert a file to FB2
The converter also works in reverse, so you can convert other "XML E-Book Format" formats to FB2 without using software like Calibre or a similar tool.
MOBI to FB2
RTF to FB2
CB7 to FB2
DOCX to FB2
DJVU to FB2
AZW to FB2
PDF to FB2
EPUB to FB2
CBR to FB2
OPML to FB2
CBC to FB2
TXT to FB2
About FB2 files
The .FB2 format is an XML-based standard developed for the FictionBook 2.0 project. It stores books by defining their structure, such as chapters, paragraphs, and metadata, rather than strict visual layouts. You can open and manage these files using Calibre or FBReader. Read more about its architecture on Wikipedia. Despite its structural logic, the .FB2 format has distinct real-world limitations. It is highly regional, maintaining popularity primarily in Eastern Europe, but it completely lacks native support on major global e-readers like the Amazon Kindle and Apple Books. Additionally, the format embeds cover art and illustrations directly into the plain-text XML code as base64 strings. This design choice dramatically inflates file sizes compared to modern container-based formats. To bypass these limitations, conversion is usually necessary. Convert to EPUB for flawless integration with Apple Books, Google Play, and Kobo. Convert to AZW3 or MOBI for Amazon Kindle devices. For printing or archiving, convert to PDF/A. Drag and drop your file here to analyze and convert it securely right in your browser.
Use Convert.Guru to open and convert your FB2 file.
If you want to convert FB2 file to AZW, KFX, PRC, OPF or CBZ, you can use Calibre or similar software from the "E-Book Storage" category. In the File menu, look for Save As… or Export….
To convert CBT, CBA or DOC files to FB2, try Calibre or another comparable tool in the "E-Book Storage" category.
The FB2 Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our FB2 converter.