E-book Converter

Convert EPUB, MOBI, AZW3, FB2 and comic books (CBZ, CBR) online, for free: 17 formats, nothing to install.

ConvertKitty is a free online e-book converter. It reads 17 formats, including EPUB, MOBI, AZW3, FB2 and comic books (CBZ, CBR), and saves them as PDF, RTF, TXT, EPUB, MOBI, AZW3, LRF, OEB, PDB. Conversions are done on our server, and your files are deleted 72 hours later.

How to convert an e-book

  1. Click Select File, or drop your files anywhere on this page.
  2. Pick the format you want next to each file: EPUB, PDF, MOBI or another.
  3. Click Convert, then Download when it is done.

Frequently asked questions

Which e-book formats can I convert?

EPUB, MOBI, AZW3, AZW, PRC, PDB, FB2, LIT, LRF, PML, RB, TCR, HTMLZ, TXTZ, CBZ, CBR, CBC.

Are my e-book files uploaded anywhere?

These conversions run on our server, because they need 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.

Is converting e-book files 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.

How large can my e-book files be?

Up to 1 GB per file. These conversions run on our server, which accepts files up to that size.

Can I choose which pages to convert?

Yes. For conversions to PDF and to pictures, click Options next to a file and write the pages, for example 1-3,5.

Does it work on my phone?

Yes. ConvertKitty runs in any modern web browser, on a computer or a phone, with nothing to install.

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