Are you a heavy user of Calibre? How much do you know about Calibre? Have you ever realized that there are many Calibre plugins that can be installed to make your Calibre more powerful? The various Calibre plugins can provide you with a lot of additional functions and extra features that you may find very useful.
After doing an in-depth research, this article is finally finished. Let's explore the best 10 Calibre plugins together.
How to install plugins to Calibre?
1 Download and run Calibre.
2 Download Calibre plugins to your computer. All the Calibre plugins are .zip file. Please don't unzip it.
3 Click on "Preference" at the top menu bar. Scroll down to the "Advanced" section and click on the "Plugins" button.
4 Tap "Load plugin from file" and choose the plugin (.zip file) that you want to install.
Please always update your Calibre plugins to the latest version to ensure they work properly.
| No. | Calibre Plugin | Main Function & Features |
|---|---|---|
| 1 | DeDRM (Apprentice Alf) | Removes DRM protection from Kindle, Adobe Digital Editions, and Kobo eBooks for backup or conversion. |
| 2 | KFX Input | Enables Calibre to import and convert Kindle KFX files into other formats like EPUB or PDF. |
| 3 | Kindle Collections | Allows you to create and manage Kindle device collections using Calibre's Authors, Series, and Tags. |
| 4 | EpubMerge | Combines multiple non-DRM EPUB files into a single eBook, ideal for creating series anthologies. |
| 5 | EpubSplit | Splits an existing non-DRM EPUB into multiple files or extracts specific sections into a new eBook. |
| 6 | Modify ePub | Performs structural edits to EPUBs (like rewriting CSS or modifying margins) without a full conversion. |
| 7 | Job Spy | A toolbox of 64 unique functions to customize the Calibre GUI, including colors and toolbar behaviors. |
| 8 | Annotations | Imports highlights and notes from Kindle (My Clippings), Kobo, and Tolino devices into Calibre. |
| 9 | Favourites Menu | Creates a customized toolbar menu to consolidate your favorite plugins and save screen space. |
| 10 | Count Pages | Calculates page and word counts for Mobi and EPUB files and stores them in custom columns. |
| 11 | DeACSM | Fulfills ACSM licenses directly within Calibre to download EPUB/PDFs without needing Adobe Digital Editions. |
| 12 | Ebook Translator | BookFere eBook Translator is a simple tool that translates ebooks into different languages. |
1. DRM Removal Plugin (DeDRM)
Undoubtedly, one of the most well-known plugins for Calibre is the DRM Removal plugin, commonly known as DeDRM. Originally developed by Apprentice Alf, this plugin allows users to remove DRM protection from many types of eBooks so they can be backed up or converted to other formats.
The DeDRM plugin supports several major DRM schemes, including:
- Amazon Kindle eBooks – books downloaded via Kindle for PC/Mac or transferred from Kindle E-ink devices.
- Adobe Digital Editions DRM – including EPUB and PDF files downloaded from stores such as Kobo, Google Play Books, and many library platforms.
- Kobo DRM – including EPUB files downloaded via kobo desktop and kobo devices.
Important update: In recent years, Amazon has changed its Kindle DRM technology multiple times. Because of these changes, the DeDRM plugin may not work with books downloaded from the newest versions of Kindle for PC/Mac. You may need to use a different DeDRM fork to handle the newer Kindle DRM. To learn which DeDRM fork works for your ebooks, please refer to Calibre and DRM Explained: An Easy Table Guide to Calibre and DeDRM.
2. KFX Input
KFX Input is an essential plugin if you want to work with Kindle KFX books in Calibre. It enables Calibre to import and convert KFX files into other formats such as EPUB or PDF.
This plugin is frequently updated and is currently one of the most downloaded Calibre plugins. Please always keep this plugin updated to ensure the DRM removal process works properly.
Detailed Guide: How to Convert Kindle KFX to Epub/PDF/Mobi with Calibre
3. Kindle Collections
Organizing your ebooks on your Kindle device is one of the greatest challenges of the Kindle. The Calibre Plugin "Kindle Collection" allows you to manage your Kindle collections using the Authors, Series, Tags or Categories in Calibre and export them to your Kindle. This plugin would be very helpful for those who own a large collection of Kindle ebooks.
Detailed Guide: Manage Kindle Collections with Calibre Plugin
4. EpubMerge
The Calibre plugin EpubMerge can provide you with a much easy way to combine multiple EPUBs (non-DRM) in a single new EPUB file. For example, you can merge several books from a series into a single book, or you can combine one author's many individually published works in a single anthology. This may be very helpful in simplifying your library when you have thousands of ebooks.
Detailed Guide: How to Merge Multiple EPUB eBooks with Calibre
5. EpubSplit
EpubSplit is a counterpart of EpubMerge. This plugin enables you to create multiple EPUBs by splitting off the parts of an existing (non-DRM) EPUB eBook. You can set the "Split Lines" in the EPUB file, and you can also extract only the selected contest of the source EPUB into the new EPUB.
6. Modify ePub
This plugin allows you to perform some certain modifications to your epub files without performing a calibre conversion. For example, you can rewrite the CSS, modify the margin, split the undesired places, change the directory structure and etc.
7. Job Spy
Job Spy is a big toolbox of 64 unique functions to make Calibre look and behave better. There are many tweaks that you may find very useful. For example, it lets you change the colors of the main GUI Text, Background, Tool Bar, Search Bar, and Status Bar. It deserves an installation to explore more functions of Calibre!
8. Annotations
The Calibre "Annotations" will help you import highlights, notes, and other annotations from supported eBook readers and platforms. How cool it is to pull your annotations made on your device and add them to your calibre library!
The supported devices and platforms include:
Kindle - annotations fetched from "My Clippings.txt" file.
Kobo eReaders - annotations fetched from database.
Tolino eReaders - annotations fetched from notes.txt file.
GoodReader
9. Favourites Menu
Are you running of Calibre screen space on your toolbar from adding plugins? Then probably you need Favourites Menu to help you. It lets you create a customized toolbar menu button with your favourite menu options. Also, you can add specific menu actions, submenus, or entire plugins to your own menu. In a word, this plugin helps you to save screen space.
10. Count Pages
Count Pages is a very useful Calibre plugin that will count the pages in a book, tell you how many words are in the file, and store the result in a custom column. This plugin now works only for Mobi and EPUB files.
11. DeACSM
DeACSM is a newer Calibre plugin that has gained popularity among advanced users. Instead of opening ACSM files in Adobe Digital Editions, this plugin allows Calibre to directly fulfill the ACSM license and download the corresponding EPUB or PDF file.
This plugin is especially useful for users who download books from stores that distribute ACSM files. It simplifies the workflow and removes the need to install Adobe Digital Editions in some cases.
Learn how to use DeACSM Plugin
12. BookFere eBook Translator
BookFere eBook Translator is a Calibre plugin that lets you translate ebooks directly from your Calibre library. It is designed to make foreign-language ebooks easier to read without requiring you to manually copy and paste text into a separate translation service.
This plugin can be useful for readers who frequently work with ebooks in different languages. By integrating translation into the Calibre workflow, it provides a convenient way to translate ebook content while managing your books in Calibre. If you want to learn how to use details, please read our full guide: How to translate ebook to any language.
Download BookFere eBook Translator
Have a Calibre plugin to recommend? Leave a comment or email us at epubor.service@gmail.com. We’ll add it to the list to help the community!
Michelle loves technology & reading very much. She seeks the methods to enjoy eBooks and audiobooks more freely and wants to share everything new she has got with you.
