Calibre
Version | 3(as of 9/14/2017) |
Platforms | Windows, Mac, Linux |
License | Open Source |
Category | Utility |
Main Features
- Supports an extensive list of eBook formats for reading, creating, and converting
- Offers a convenient way to download eBooks from Internet stores
- Downloads news stories and converts them into eBook form
- Provides helpful library management tools
Software Overview
Calibre is a free, open source eBook application that allows you to manage your collection of eBooks on your computer. In the application, you can read, create, and edit your eBooks in a variety of formats.
Calibre offers helpful management tools to organize your eBook library. You can sort your books by title, author, date published, rating, etc., which allows you to search through your collection quicker. The application provides editing tools to help you customize the appearance of your eBooks. With these tools, you can change the font, style, images, etc. of your eBook. Calibre also provides a convenient avenue to download new eBooks. The program allows you to search for your eBook by title, author, or keyword and check/uncheck the stores you want to search. You can also download news in eBook format from your news websites such as The New York Times, Time, Newsweek, ESPN, and Deadspin.
Along with the management features, Calibre supports a wide array of popular eBook file formats. It can read eBook formats such as EPUB, LRF, HTML, LIT, MOBI, PDF, Topaz, Text, and SNB. It also allows you to create and convert eBook formats including EPUB, MOBI, AZW3, KFX, FB2, HTMLZ, LIT, LRF, PDB, PDF, TXT, and ZIP. In addition to supporting eBook formats, Calibre can also read popular word processing files with .DOCX, .DOC, and .ODT extensions.
Calibre is a good eBook managing application. It supports a wide array of eBook formats, provides helpful library management tools, and makes it easy to download new content. If you own any eBooks or are looking to start, give Calibre a shot.
Primary File Type

Supported File Types
Extension | File Type |
---|---|
.EPUB | Open eBook File |
.AZW3 | Amazon KF8 eBook File |
.AZW4 | Amazon Print Replica eBook |
.BOOK | iBooks Author Document |
.CBC | Comic Book Collection |
.CBR | Comic Book RAR Archive |
.CBZ | Comic Book Zip Archive |
.CHM | Compiled HTML Help File |
.DJV | DjVu Image |
.DJVU | DjVu Image |
.DOC | Microsoft Word Document (Legacy) |
.DOCX | Microsoft Word Document |
.FB2 | FictionBook 2.0 File |
.HTM | Hypertext Markup Language File |
.HTML | Hypertext Markup Language File |
.HTMLZ | Zipped HTML eBook |
.IBA | iBooks Author Document |
.KFX | Amazon KF10 eBook File |
.LIT | eBook File |
.LRF | Sony Portable Reader File |
.LRS | Librie Reader Source File |
.LRX | Sony Portable Reader File |
.MARKDOWN | Markdown Documentation File |
.MOBI | Mobipocket eBook |
.NCX | EPUB Navigation Control XML File |
.ODT | OpenDocument Text Document |
.OPF | Open Packaging Format File |
.OXPS | OpenXPS File |
.PDB | Palm Desktop Database File |
Portable Document Format File | |
.PDR | ProntoDoc for Word Recovered Document |
.PML | Palm Markup Language File |
.POBI | Kindle Touch Periodical File |
.PRC | Mobipocket eBook File |
.RAR | WinRAR Compressed Archive |
.RTF | Rich Text Format File |
.SNB | Shanda Bambook eBook |
.TCR | Psion Series 3 eBook File |
.TEXT | Plain Text File |
.TPZ | Kindle Topaz eBook File |
.TXT | Plain Text File |
.XHTML | Extensible Hypertext Markup Language File |
.XPS | XML Paper Specification File |
.ZIP | Zipped File |
Additional Related File Types
Extension | File Type |
---|---|
.AZW | Amazon Kindle eBook File |
.AZW1 | Amazon Topaz eBook |
.AZW2 | Kindle Active Content App File |
.AZW3 | Amazon KF8 eBook File |
.CALIBRE | Calibre Device Data File |
.PMLZ | Zipped Palm Markup Language File |