head to head · open source
calibre vs Publish-Docker-Github-Action
calibre has 25,923 GitHub stars, 2,690 forks, 6 open issues and last shipped yesterday. Publish-Docker-Github-Action has 794 stars, 203 forks, 0 open issues and last shipped 2 days ago. calibre leads on adoption by 3,165% (25,923 vs 794 stars). calibre is written in Python under GPL-3.0; Publish-Docker-Github-Action is written in Shell under MIT. calibre has attracted 10% as many forks as stars, Publish-Docker-Github-Action 26%. calibre 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 | Publish-Docker-Github-Action | |
|---|---|---|
| GitHub stars | ★ 26K | ★ 794 |
| License | GPL-3.0 | MIT |
| Written in | Python | Shell |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 2.7K | ⑂ 203 |
| 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 Publish-Docker-Github-Action if
- You want the Publish-Docker-Github-Action feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Shell
- You evaluated both and Publish-Docker-Github-Action 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 Publish-Docker-Github-Action
Publish Docker Github Action is a GitHub Action written in Shell and licensed under MIT that builds and publishes Docker images from a repository. It lives in the GitHub Actions ecosystem and converts a Git branch into a Docker tag. The master branch is published as the latest tag.
read the full Publish-Docker-Github-Action overview →
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Frequently asked questions
Is calibre or Publish-Docker-Github-Action more popular?
calibre has 25,923 GitHub stars and Publish-Docker-Github-Action has 794. calibre has the larger community by that measure.
Are calibre and Publish-Docker-Github-Action free?
Both are open source. calibre is licensed under GPL-3.0 and Publish-Docker-Github-Action under MIT. Neither carries a licence fee.
What is the difference between calibre and Publish-Docker-Github-Action?
calibre is written in Python and Publish-Docker-Github-Action in Shell. 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 Publish-Docker-Github-Action?
Choose calibre if you want the larger community (25,923 stars) or its GPL-3.0 licence terms. Choose Publish-Docker-Github-Action if its feature set, stack or MIT licence fits better. Both are self-hostable.