
Codédex
Scrimba
GoIT LMS
Treehouse
Refocus
CodeCrafters
Divize
A better way to support developers

FBReader
Amazon Kindle
Okular
Sumatra PDF
Calibre Web
KOReader
Google Play Books
Ebook manager, viewer & converter
Which is more popular?
Based on our record, calibre seems to be more popular. It has been mentioned 553 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | dataprotocol.com | calibre-ebook.com |
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What each product offers, as listed by its team.


No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Sven Mawson - Evolution of the Google Data Protocol
Why I Stopped Watching Calibre on Netflix in 10 Minutes! | Flick Connection Podcast Clip (Ep. 11)
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Data Protocol and calibre. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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If you are looking for the best eBook reader for your PC, you can try Calibre. It is a user-friendly and useful eBook managing tool that is a must-have for every reader. Besides being completely open-source and free,...
Calibre is one of the most popular eBook apps for Linux. To be honest, it’s a lot more than just a simple eBook reader. It’s a complete eBook solution. You can even create professional eBooks with Calibre.
The Calibre ebook reader is one of the best ebook management tools to help you read and organize your entire library. Calibre is portable and cross platform, so it’s available on nearly every device you own.
Recommendations tracked on public social media and blogs since March 2021.


Tracking Data Protocol since Oct 2023.
Calibre lets you put non-Amazon eBooks on these very same devices. It made me start using my old Kindle again: https://calibre-ebook.com/. - Source: Hacker News / 6 months ago
Calibre is the open-source ebook management tool that's been around since 2006 and remains the gold standard. It converts between virtually every ebook format, manages metadata, and can push books to your Kindle over USB or wirelessly. - Source: dev.to / 6 months ago
If I make the environment variable persistent in my .profile, Calibre's ebook reader does not work. - Source: dev.to / over 1 year ago
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Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and...
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Empowering emerging markets with high-quality tech education
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Okular is a universal document viewer based developed by KDE.
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