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I tried it and immediately fell in love! It was so easy to use! After a couple conversions I bought the guys a cup of coffee. A couple more and decided this was too good to abuse! I joined! My life is so much easier!


Used it for over a year to convert my bank statements to csv files. Great quick app, increased my productivity a lot. Also, amazing support - always helped me quickly!

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I've used this product for years. And customer service is excellent. Just had an issue where I was charged and I didn't agree with the charge and they took care of it, even though they didn't have to.


I have been so thankful for Zamzar’s support from the beginning of the Pandemic to the present day. Their service is first rate & their helpfulness is always the best it could be.


A very useful and professional site. The service is easy to use and the administrators are helpful and courteous.

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It’s my first time using it. I had some complications doing it. I’m not very good at this. But I wrote to the company and I had a lot of help. I’m satisfied with customer service and with the app.

Ana Suárez

I use Zamar whenever I need to convert audio and video files from multiple submitters to 1 uniform file format for Audio and Video Editing. I can do multiple large files in a short amount of time.

Christopher Bee

Great for when you need a lot of conversions in a short time. You have directly access and can even put the subscription on for just a month.

Sabina Calis

Great thanks to you all for helping me to get the OLD files converted correctly. 20 years, quite a long time, reviewing the files brings much memory to me. That's the best gift I received last year. Thank you all again.

Jiunn-Ru Lai

Fantastic service! My mom's computer died and she has 1000+ Word Perfect files she wants to keep for some reason. Since Word Perfect is basically dead, I decided to convert all her files. Zamzar's converter was perfect.

Aron Boyette

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Employees of some of the world’s most well-known brands rely on Zamzar to convert their files safely and efficiently, ensuring they have the formats they need for the job at hand. From global corporations and media companies, to respected educational establishments and newspaper publications, employees of these organisations trust Zamzar to provide the accurate and reliable conversion service they need.

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From your personal desktop to your business files, we've got you covered

We offer a range of tools, to help you convert your files in the most convenient way for you. As well as our online file conversion service, we also offer a desktop app for file conversions straight from your desktop, and an API for automated file conversions for developers. Which tool you use is up to you!

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Tools to suit your file conversion needs

You’ll find all the conversion and compression tools you need, all in one place, at Zamzar. With over 1100 file-conversion types supported, whether you need to convert videos, audio, documents or images, you’ll easily find what you need and soon have your files in the formats and sizing that work for you.

FB2 eBook Format

FB2 Converter

An FB2 file also goes by the name of a FictionBook 2.0 File and was developed by FictionBook, a company from Russia. Other e-Book formats tend to contain many XML files but an FB2 file is different in that it only contains one. That one XML file provides detail around each element of the book so that when it is displayed by a reader it knows to display text. i.e. it will know which text to bold, which text to underline and so on. Given the company who made it is perhaps not surprising that this file format is aimed at fiction books but it’s not exclusively fiction as there are no technical reasons as to why it wouldn’t work for other formats.

FB2 formats are supported by many programs because of their simple file structure. Therefore, programs such as Calibre, Cool Reader and even OpenOffice are all able to support FB2 files.

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MOBI eBook Format

MOBI Converter

A MOBI file has a full name of Mobipocket e-book and is an e-book file format that has been developed by Amazon and are the basis of the file formats used by all Amazon Kindle devices. A MOBI file differs from the other popular e-book format, epub, in that it is protected by Digital Rights Management which essentially pins the book down to just the one device so it can’t be used if not registered to the users account.

MOBI file formats have provided the basis of the recently created KF8 file format which are used in the most recent Kindle formats. As e-books and e-readers become more popular, the MOBI format’s use has largely fallen away but it is still the base on which many of the more modern e-book formats are based including AZW and AZW1.

Programs that can open a MOBI file format include the Kindle and and the tool Calibre.

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How to convert a FB2 to a MOBI file?

  1. 1. Choose the FB2 file that you want to convert.
  2. 2. Select MOBI as the the format you want to convert your FB2 file to.
  3. 3. Click "Convert" to convert your FB2 file.

Convert from FB2

Using Zamzar, it is possible to convert FB2 files to a variety of other formats:

FB2 to AZW3 FB2 to EPUB FB2 to OEB FB2 to LIT FB2 to LRF FB2 to MOBI FB2 to PDF FB2 to MP3 FB2 to PDB FB2 to PML FB2 to PRC FB2 to RB FB2 to TCR FB2 to TXT

Convert to FB2

Using Zamzar, it is possible to convert a variety of other formats to FB2 files:

AZW to FB2 AZW3 to FB2 CBC to FB2 CBR to FB2 CBZ to FB2 CHM to FB2 DOC to FB2 DOCX to FB2 EPUB to FB2 LIT to FB2 LRF to FB2 MOBI to FB2 PDB to FB2 PDF to FB2 PML to FB2 PRC to FB2 RB to FB2 TCR to FB2