Convert to OEB

Convert e-books to OEB online, for free, with nothing to install.

DOCX, PDF, EPUB, MOBI and 19 other e-book formats can be converted to OEB: drop your files above, and OEB is already chosen as the output. Files are converted on our server and deleted 72 hours later.

What is an OEB file?

OEB – OEB e-book (a folder of files, in a ZIP). OEB (Open eBook) is the folder of files, with an OPF package file, that EPUB grew out of. The result comes as a ZIP of that folder.

How to convert e-books to OEB

  1. Click Select File, or drop your e-books anywhere on this page. Any of the 23 supported formats works.
  2. OEB is already chosen as the output on this page.
  3. Click Convert, then Download when it's done.

OEB at a glance

OEB
LayoutFlowing text
EditableYes
Created byOpen eBook Forum, 1999
Best forTools that read the unpacked e-book

Frequently asked questions

Why convert to OEB?

OEB (Open eBook) is the folder of files, with an OPF package file, that EPUB grew out of. The result comes as a ZIP of that folder. Best for: Tools that read the unpacked e-book.

Which e-book formats can be converted to OEB?

AZW, AZW3, CBC, CBR, CBZ, DOCX, EPUB, FB2, HTML, HTMLZ, LIT, LRF, MOBI, ODT, PDB, PDF, PML, PRC, RB, RTF, TCR, TXT, TXTZ.

Is converting to OEB 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 e-books 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.

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