head to head · open source
koodo-reader vs papermill
koodo-reader has 28,217 GitHub stars, 2,116 forks, 271 open issues and last shipped yesterday. papermill has 6,486 stars, 463 forks, 196 open issues and last shipped 2 months ago. koodo-reader leads on adoption by 335% (28,217 vs 6,486 stars). koodo-reader is written in JavaScript under AGPL-3.0; papermill is written in Python under BSD-3-Clause. koodo-reader has attracted 7% as many forks as stars, papermill 7%. koodo-reader 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.
← all 8884 open source comparisons
Side by side
| koodo-reader | papermill | |
|---|---|---|
| GitHub stars | ★ 28K | ★ 6.5K |
| License | AGPL-3.0 | BSD-3-Clause |
| Written in | JavaScript | Python |
| Last push | 2026-09-17 | 2026-07-06 |
| Forks | ⑂ 2.1K | ⑂ 463 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick koodo-reader if
- You weight community size — 28K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick papermill if
- You want the papermill feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches Python
- You evaluated both and papermill fits your workflow better
About koodo-reader
Koodo Reader is a cross platform ebook manager and reader written in JavaScript and released under the AGPL 3.0 license. It runs on Windows, macOS, Linux, Android, iOS, and the web, and it is distributed both as downloadable desktop and mobile applications and as a hosted web version at web.koodoreader.com. The project lives in the JavaScript ecosystem, is developed with yarn and git, and has been maintained for roughly seven years, with a repository that carries about 28,000 stars and 2,100 forks.
read the full koodo-reader overview →
About papermill
Papermill is a Python tool published under the BSD 3 Clause licence by the nteract project that parameterizes, executes, and analyzes Jupyter notebooks, and it is aimed at teams who need to run the same notebook repeatedly with different inputs inside data pipelines.
read the full papermill overview →
More in Content & Publishing
Related comparisons
More Publishing projects
Compare either of these against the rest of the Publishing field.
Frequently asked questions
Is koodo-reader or papermill more popular?
koodo-reader has 28,217 GitHub stars and papermill has 6,486. koodo-reader has the larger community by that measure.
Are koodo-reader and papermill free?
Both are open source. koodo-reader is licensed under AGPL-3.0 and papermill under BSD-3-Clause. Neither carries a licence fee.
What is the difference between koodo-reader and papermill?
koodo-reader is written in JavaScript and papermill in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, koodo-reader or papermill?
Choose koodo-reader if you want the larger community (28,217 stars) or its AGPL-3.0 licence terms. Choose papermill if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.