26.5k
Koodo Reader
A modern ebook manager and reader with sync and backup capacities for Windows, macOS, Linux, Android, iOS, and Web platforms.
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2 Open Source Alternatives to Calibre
There are 2 open-source alternatives to Calibre in this directory. The most popular is Koodo Reader with 26.5k GitHub stars, followed by Audiblez(5.9k stars). All are open source, free to use, and many can be self-hosted.
Quick comparison
| # | Tool | Stars | Language | License |
|---|---|---|---|---|
| 1 | Koodo Reader A modern ebook manager and reader with sync and backup capacities for Windows, macOS, Linux, Android, iOS, and Web platforms. | 26.5k | JavaScript | GNU Affero General Public License v3.0 |
| 2 | Audiblez Audiblez is a tool to generate high-quality audiobooks from e-books, allowing users to enjoy their favorite books audibly. | 5.9k | Python | MIT License |
All open-source alternatives to Calibre
Frequently asked questions
What are the best open-source alternatives to Calibre?
The top three are Koodo Reader(26.5k stars), Audiblez(5.9k stars). All are open source and free to use.
Are these alternatives to Calibre free?
Yes. Every tool listed here is open source and free to use in your own projects. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Can I self-host an alternative to Calibre?
Many of the alternatives listed are self-hostable. Each tool's page lists hosting details, system requirements, and licensing terms.
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