To convert FB2 to AZW3, select or drop your .fb2 file above, check that AZW3 is chosen as the output, and click Convert. This conversion runs on our server, and your files are deleted 72 hours later.
What is a FB2 file?
FB2 – FictionBook e-book. FB2 (FictionBook) is an XML e-book format popular in Russia and Eastern Europe. It holds text, structure, metadata and pictures in one file.
FB2 Converter →What is an AZW3 file?
AZW3 – Kindle e-book (AZW3, KF8). AZW3 (also called KF8) is the Kindle e-book format that replaced MOBI. It supports modern layout and fonts.
AZW3 Converter →How to convert FB2 to AZW3
- Click Select File, or drop your .fb2 files anywhere on this page. You can add several at once.
- Check that AZW3 is chosen as the output format. On this page it is picked for you.
- Click Convert. When a file has to go to our server, the button says Upload and convert instead.
- Click Download next to each file when it's done.
FB2 vs AZW3: how they compare
| FB2 | AZW3 | |
|---|---|---|
| Layout | Flowing text | Flowing text |
| Editable | With e-book tools | With e-book tools |
| Created by | Dmitry Gribov, 2004 | Amazon, 2011 |
| Best for | Reading apps such as FBReader and PocketBook | Kindle e-readers |
Good to know
- The FB2 e-book is converted by calibre. Copy-protected (DRM) e-books cannot be converted: ConvertKitty does not remove DRM, so use books you have bought without it or that are free of it.
- The AZW3 e-book is made by calibre from the text, headings and pictures of the FB2 file; a cover is not created.
Frequently asked questions
Is converting FB2 to AZW3 free?
Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.
Are my FB2 files uploaded anywhere?
This conversion runs on our server, because reading a FB2 file needs calibre, which does not run in a browser. Your file is sent over an encrypted connection, and both it and the result are deleted 72 hours after the conversion. The server has no internet access while it works on your file.
How large can the FB2 file be?
Up to 1 GB per file. This conversion runs on our server, which accepts files up to that size.
Will the AZW3 look the same as the FB2?
The text, chapters and pictures are kept. The look can differ: AZW3 readers use their own fonts and page sizes, so page breaks move.
Can I convert several FB2 files at once?
Yes. Add as many files as you like; they are converted one after another, and each one gets its own Download button.
How long does converting FB2 to AZW3 take?
In our tests a 4 MB novel of 400 chapters took about 44 seconds to become an AZW3 file. Most books are far smaller and take a few seconds.
Convert FB2 to other formats
- FB2 Converter
- FB2 to EPUB Converter
- FB2 to LRF Converter
- FB2 to MOBI Converter
- FB2 to OEB Converter
- FB2 to PDB Converter
- FB2 to PDF Converter
- FB2 to RTF Converter
- FB2 to TXT Converter
Convert other files to AZW3
- Convert to AZW3
- DOCX to AZW3 Converter
- PDF to AZW3 Converter
- EPUB to AZW3 Converter
- MOBI to AZW3 Converter
- ODT to AZW3 Converter
- RTF to AZW3 Converter
- TXT to AZW3 Converter
- HTML to AZW3 Converter
- CBZ to AZW3 Converter
All e-book formats
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