If you are an ebook enthusiastic, you probably are in desperate need for a powerful eBook management software which can catalog your books in a nice interface. Then you won't lose the track of your beloved books. Therefore, we have compiled a list of best 5 eBooks manager for you.
Calibre release (3.48.0) Windows. Windows 64-bit Installer; Windows 32-bit Installer; Calibre Portable Calibre Portable Installer Apple Mac OS X Disk Image (.dmg). If you don’t want to use calibre, for whatever reason, here is an alternative. The DeDRM application identifies an ebook’s format, and then removes the DRM from that ebook by running the appropriate DRM removal python script. Installing the DeDRM Application. Mac OS X 10.4 only: Install Python 2.7.3.
1. Calibre
Calibre is a powerful and easy to use e-book manager. calibre ebook management supports organizing existing e-books into virtual libraries, displaying, editing, creating and conversion of e-books, as well as syncing e-books with a variety of e-readers. It also supports many file formats and reading devices. Most e-book formats can be edited, for example, by changing the font, font size, margins, and metadata, and by adding an auto-generated table of contents. It'll allow you to do nearly everything and it takes things a step beyond normal e-book software. It's also completely free and open.
Main prominent features of Calibre:
Comprehensive e-book viewer.
Share and backup your library easily.

Download news/magazines from the web.
Support many file formats and reading devices.
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Allow users to sort and group e-books by metadata fields.
Support organizing, displaying, editing, creating and conversion of e-books, as well as syncing e-books with a variety of e-readers.
2. Epubor
Epubor.com is a well-known software producer. And it has done a wonderful job in its eBook DRM Removal and eBook Converter tool. Most of people may be familiar with its star software-Epubor Ultimate, the most powerful eBook DRM Removal and eBook Converter tool. Like always, Epubor has never let its customer down. So does this amazing ebook manager.
Calibre For Mac Download
Epubor is an all-in-one eBook Manager for you to manage your eBooks from different sources. It supports you to classify, modify, convert and transfer your eBooks. So with only one Epubor eBook Manager, you will own Epubor Ultimate, Kindle Transfer, eBook Reader, eBook Manager and eBook Editor tools instead. Isn't that super dope?
Main prominent features of Epubor:
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Satisfy every e-book need and get support.
Calibre App Mac Os X
Save time on managing your e-book collection.
Support decrypting and converting encrypted eBooks.
Allow users to transfer encrypted eBooks between devices.
Web Server allows users to access your Epubor Library books on any device.
Catalog eBooks from your devices, Kindle for Mac/PC, Adobe Digital Editions, calibre and iTunes by automatically scanning.
Epubor eBook Manager is the most powerful and functional ebook management software. With Epubor, you can also remove DRM from your purchased ebooks, convert book formats and transfer encrypted book between e-ink devices without installing any plugin.
3. Alfa eBook Manager
Alfa eBooks Manager is the most powerful and easy-to-use book organizer for Windows OS only that allows to organize your electronic and paper books in a single e-Library. It makes ebook collection management fast and easy, saves your time and keeps your electronic library safe. Besides, our ebook catalog software enables you to retrieve ebook information from public web-sources and create beautiful library visualization. With Alfa eBooks Manager you can handle your book data and book files at the same time.
Main prominent features of Alfa eBooks Manager:
Move files between your computer and your eBook reader.
Allow to easily manage and play mp3 and m4b audio books.
Built-in ebook reader supports most popular formats of books.
View and edit ebook metadata for most popular ebook formats including PDF, EPUB, MOBI, AZW, FB2.
Convert books from one format to another. Most popular conversion directions are supported.
4. Delicious Library
Delicious Library is a paid digital asset management app for Mac OS X, developed by Delicious Monster to allow the user to keep track and manage their physical collections of books, CDs, and video games. Delicious Library 3 is available from the Mac App Store and the developers website for Macintosh systems running OS 10.8 or higher. More importantly, Delicious Library wins Apple Design Award in 2015 for its best user experience.
Main prominent features of Delicious Library:
Support rating stuff you don't even own.
Import the library from another application (like Bookpedia)
Import all your stuff onto your digital shelves using your Mac's iSight webcam.
Catalog your books, movies, music, software, tools, video games in a nice interface.
Integration with Mac OS X's Address Book application to allow lending management.

5. Adobe Digital Edition
Adobe Digital Editions software offers an engaging way to view and manage eBooks and other digital publications. Most major publishers use Adobe Digital Editions(ADE) to proof-read their books. Use it to download and purchase digital content, which can be read both online and offline. Transfer copy-protected eBooks from your personal computer to other computers or devices. Organize your eBooks into a custom library and annotate pages. Adobe Digital Editions also supports industry-standard eBook formats, including PDF and EPUB.
Main prominent features of Adobe Digital Editions:
Borrow eBooks from many public libraries for use with Digital Editions.
Bookmark, highlight or note important and favorite portions of text from your eBook.
Search for keywords across all chapters in your eBook through an intuitive full-text search functionality.
Downloaded books on one device will appear automatically across all the devices you have ADE on.
Organize your digital publications and manage devices with Adobe Digital Editions with options to create custom bookshelves sorted by title, author, and publisher.
Conclusion
All the above eBook manager has their distinguished advantages. Delicious Library and Alfa eBook Manager are paid software. And Delicious Library is only available for Mac OS and Alfa eBook Manager can only be used on Windows OS. The freeware Calibre, ADE and Epubor can be used both on Window and Mac computer to help you organize your ebooks perfectly. While the paid version Epubor can help you decrypt DRMed ebook and convert formats for you without installing any plugin. Besides this, Epubor can also help you transfer encrypted books to kobo or Kindle e-ink reader fastly and easily.
Hillary Lopez works for Epubor and writes articles about eBooks and eReaders. She explores the best method to help you read eBooks more freely and wants to share all she has got with you.
Post updated on 22nd March, 2013
System Requirements: Mac OS X 10.4 and above.
The simplest way to remove the DRM from your ebooks is to use calibre and the DeDRM calibre plugin, as described in my post DeDRM plugin for calibre: the simplest option for removing DRM from most ebooks. If you don’t want to use calibre, for whatever reason, here is an alternative.
The DeDRM application identifies an ebook’s format, and then removes the DRM from that ebook by running the appropriate DRM removal python script.
Installing the DeDRM Application
Mac OS X 10.4 only: Install Python 2.7.3
- Download Python 2.7.3 from python.org and, if necessary, mount the disk image file by double-clicking it.
- Run the Python.mpkg application from the disk image, accepting all defaults.
Install the DeDRM application
- Download the latest tools zip archive (link in this post).
- Unzip the tools archive (by double-clicking it).
- Open the folder “DeDRM_Application_Macintosh” that’s in the unzipped tools folder.
- Read the “DeDRM ReadMe.rtf” file that’s in the “DeDRM_Application_Macintosh” folder!
- Drag the “DeDRM.app” application to your “Applications” folder or wherever is convenient for you.
- If you wish, drag the “DeDRM.app” application into your Dock to make is easily accessible.
Using the DeDRM Application
To remove DRM from a Kindle for Mac or an Adobe Digital Edition ebook, just drag & drop the ebook file onto the application when it is not running.
For other ebooks, you will need to enter some extra information. Run the DeDRM application by double-clicking it to access the configuration dialogs.
To remove DRM from several ebooks or folders of ebooks at once, just drag & drop the files and folders onto the DeDRM application when it is not running.
Notes
eReader ebooks: The output from an encrypted eReader file is a .pmlz zip file of the unencypted PML and images. If you have DropBook, a free application available from http://www.ereader.com/ereader/software/browse.htm installed on your Mac, DropBook will be used to also produce an unencrypted eReader file. Sometimes there are problems compiling the decode PML file using DropBook. In such a case, Calibre can also import the PMLZ file and convert to other formats. N.B. The DropBook application will not run on Mac OS X 10.7 and later.
Amazon Topaz ebooks: Some Amazon Kindle ebooks are in a format known as Topaz. This AppleScript will remove the DRM from the Topaz files, but to allow the file to be converted into other formats, the Topaz format must be converted during the de-drming process. The end result is that you end up with two files from one Topaz format ebook. One is the text (& pictures) of the book in HTML format created from the OCR text that’s stored in the Topaz file. Another is a set of SVG page images which very closely resemble the pages of the book the Topaz file was created from. For most purposes, you’ll only need the HTML file, but if the OCR is poor, you might want to unzip the folder of SVG images to check the pages or convert them to an image based PDF file.
Anti-Piracy Notice
Please only use this application for gaining full access to your own ebooks for archiving/converson/convenience. De-drmed ebooks should not be uploaded to open servers, torrents, or other methods of mass distribution. No help will be given to people doing such things. Authors, retailers and publishers all need to make a living, so that they can continue to produce books for us to read. Don’t be a parasite.
About the Macintosh DeDRM Application
This application is written in AppleScript, and can be opened and edited using the AppleScript Script Editor.
— Alf.