head to head · open source
calibre vs gradle-maven-publish-plugin
calibre has 25,923 GitHub stars, 2,690 forks, 6 open issues and last shipped yesterday. gradle-maven-publish-plugin has 1,742 stars, 140 forks, 63 open issues and last shipped yesterday. calibre leads on adoption by 1,388% (25,923 vs 1,742 stars). calibre is written in Python under GPL-3.0; gradle-maven-publish-plugin is written in Kotlin under Apache-2.0. calibre has attracted 10% as many forks as stars, gradle-maven-publish-plugin 8%. gradle-maven-publish-plugin was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| calibre | gradle-maven-publish-plugin | |
|---|---|---|
| GitHub stars | ★ 26K | ★ 1.7K |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Python | Kotlin |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 2.7K | ⑂ 140 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick calibre if
- You weight community size — 26K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick gradle-maven-publish-plugin if
- You want the gradle-maven-publish-plugin feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Kotlin
- You evaluated both and gradle-maven-publish-plugin fits your workflow better
About calibre
calibre is the official source code repository for the calibre e book manager, an open source application written in Python and released under GPL 3.0. It lives in the content and publishing ecosystem as a desktop tool for books, and it is cross platform, running on Linux, Windows and macOS. The project has been hosted on GitHub for roughly thirteen years, carries about 25,900 stars and 2,683 forks, and its home on the web is calibre ebook.com, where an About page and a screenshots page document it further.
read the full calibre overview →
About gradle-maven-publish-plugin
gradle maven publish plugin is a Kotlin Gradle plugin licensed under Apache 2.0. It creates a publish task to upload Java, Kotlin, or Android libraries to any Maven instance, including Maven Central or other Nexus instances. The project lives in the Gradle build ecosystem and covers Android, Java, Kotlin JVM, and Kotlin Multiplatform libraries.
read the full gradle-maven-publish-plugin overview →
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Frequently asked questions
Is calibre or gradle-maven-publish-plugin more popular?
calibre has 25,923 GitHub stars and gradle-maven-publish-plugin has 1,742. calibre has the larger community by that measure.
Are calibre and gradle-maven-publish-plugin free?
Both are open source. calibre is licensed under GPL-3.0 and gradle-maven-publish-plugin under Apache-2.0. Neither carries a licence fee.
What is the difference between calibre and gradle-maven-publish-plugin?
calibre is written in Python and gradle-maven-publish-plugin in Kotlin. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, calibre or gradle-maven-publish-plugin?
Choose calibre if you want the larger community (25,923 stars) or its GPL-3.0 licence terms. Choose gradle-maven-publish-plugin if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.