
Calibre is a versatile open-source application designed for efficient e-book library management. It empowers users to effectively catalog their e-book collections, facilitate seamless format conversions, synchronize with leading e-book reader devices, and even read e-books through its built-in viewer.
This multifunctional tool not only serves as an extensive e-library but also encompasses features such as format conversion, the ability to turn web-based news into e-book formats, and synchronization with various e-book readers. Moreover, Calibre’s integrated viewer enables access to a multitude of e-book formats, allowing you to manage your reading library from anywhere using just a web browser.
Key Features of Calibre
- Comprehensive library management capabilities
- Supports conversion between all major e-book formats
- Synchronization options with e-book reader devices
- Automated fetching of news articles from the web and conversion into e-book format
- Integration of a viewer that accommodates various e-book formats
Calibre 8.2.1 Updates
The latest version, Calibre 8.2.1, introduces vital new features, enhanced performance, and important bug fixes. Below are the highlights from the changelog:
New Features
- Enhanced Kobo driver: Now supports new Tolino firmware.
- Kindle driver update: Users can now input a value of * in the Preferences under Output options, enabling the marking of all books sent to the device as personal documents.
Bug Fixes
- Kobo driver: Resolved issues with hyphenation and extra CSS being disregarded in KEPUB files by the renderer.
- macOS compatibility: Fixed issues with opening book folders or PDF files with titles containing square brackets.
- Quickview functionality: Corrected a long-standing bug related to syncing columns when hidden or reordered.
- E-book viewer enhancements: Proper error messaging is now displayed for invalid nearby search expressions.
- KEPUB Output improvements: Adjusted incorrect encoding detection for certain HTML files lacking encoding declarations.
- macOS updates: Addressed a regression affecting the E-book viewer when updating annotations in books with numerous notes.
- Resolved an error causing clicking on format links in the book details panel to malfunction.
Improved News Sources
- The Economist
- Reuters
- Private Eye
Download Calibre 8.2.1
You can download Calibre 8.2.1 from the following sources:
- Calibre 8.2.1 for Windows | ~200.0 MB (Open Source)
- Portable version
- Calibre 8.2.1 for macOS | 318.0 MB
- Calibre 8.2.1 for Linux
For additional information, visit the Calibre Home Page or check out the source for images and further details.

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