How to convert FictionBook (FB2) to MOBI
- 1
Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
- 2
Convert FictionBook (FB2) to MOBI
NexMedia converts FictionBook (FB2) to MOBI on its own servers. Processing time depends on the file size and how busy the queue is.
- 3
Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About FictionBook (FB2)
FictionBook (FB2) is an XML-based ebook format that describes the structure of a book (sections, titles, notes) rather than its appearance.
Ebooks in Russia and Eastern Europe, where many free libraries offer FB2.
Kindle and Apple Books do not read FB2, and its styling options are minimal.
Convert FB2 to MOBI online free, no account required — MOBI is the Mobipocket ebook format of early Kindles.
Change FB2 to MOBI without losing quality — convert FB2 to MOBI free in your browser.
Why can't my ebook app open my FB2 file? FictionBook is an XML format popular mainly in Eastern Europe, and Western readers rarely ship support for it — converting to EPUB makes it readable anywhere.
About MOBI
MOBI is the Mobipocket ebook format, which Amazon acquired in 2005 and used for the first Kindles.
Older Kindle devices and ebook collections from before AZW3.
MOBI supports only basic formatting, and Amazon's Send to Kindle no longer accepts MOBI files.
Why convert an ebook to MOBI? For very old Kindles that predate EPUB support; anything modern reads EPUB or AZW3.
What changes when you convert FB2 to MOBI
- Ebook conversion is best-effort: the text, images and table of contents of the FB2 carry over to MOBI, but layout and styling can change.
- Fixed layouts, embedded fonts and complex styling in the FB2 may not survive the move to MOBI.
Settings you can change
Before you convert FB2 to MOBI, you can adjust: Title, Author, Language, Page size, Base font size, and Generate table of contents.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted MOBI file is kept for 2 hours, then deleted.
FB2 to MOBI: questions and answers
Does converting FB2 to MOBI reduce quality?
Ebook conversion is best-effort: the text, images and table of contents of the FB2 carry over to MOBI, but layout and styling can change.
What is the difference between FB2 and MOBI?
FB2 is an XML-based ebook format. MOBI is the Mobipocket ebook format of early Kindles.
Can I change the settings when converting FB2 to MOBI?
Before you convert FB2 to MOBI, you can adjust: Title, Author, Language, Page size, Base font size, and Generate table of contents.
Do I need an account to convert FB2 to MOBI?
No. You can convert FB2 to MOBI without an account; signing in raises the file-size and daily limits.
How long is my converted MOBI file kept?
The MOBI file you convert from FB2 is kept for 2 hours, then deleted automatically.
Will the page layout of my FB2 survive in the MOBI?
Fixed layouts, embedded fonts and complex styling in the FB2 may not survive the move to MOBI.
Will my MOBI look exactly like my FB2?
Ebook conversion is best-effort: the text, images and table of contents of the FB2 carry over to MOBI, but layout and styling can change.