head to head · open source
koodo-reader vs parsifal
koodo-reader has 28,217 GitHub stars, 2,116 forks, 271 open issues and last shipped yesterday. parsifal has 517 stars, 189 forks, 40 open issues and last shipped 5 months ago. koodo-reader leads on adoption by 5,358% (28,217 vs 517 stars). koodo-reader is written in JavaScript under AGPL-3.0; parsifal is written in Python under MIT. koodo-reader has attracted 7% as many forks as stars, parsifal 37%. 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.
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Side by side
| koodo-reader | parsifal | |
|---|---|---|
| GitHub stars | ★ 28K | ★ 517 |
| License | AGPL-3.0 | MIT |
| Written in | JavaScript | Python |
| Last push | 2026-09-17 | 2026-05-05 |
| Forks | ⑂ 2.1K | ⑂ 189 |
| 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 parsifal if
- You want the parsifal feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and parsifal 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 parsifal
Parsifal is a free, MIT licensed web application that supports researchers in planning, conducting, and reporting systematic literature reviews, and it is aimed at academics, research groups, and reviewers who need to manage that process in software rather than by hand.
read the full parsifal overview →
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Frequently asked questions
Is koodo-reader or parsifal more popular?
koodo-reader has 28,217 GitHub stars and parsifal has 517. koodo-reader has the larger community by that measure.
Are koodo-reader and parsifal free?
Both are open source. koodo-reader is licensed under AGPL-3.0 and parsifal under MIT. Neither carries a licence fee.
What is the difference between koodo-reader and parsifal?
koodo-reader is written in JavaScript and parsifal 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 parsifal?
Choose koodo-reader if you want the larger community (28,217 stars) or its AGPL-3.0 licence terms. Choose parsifal if its feature set, stack or MIT licence fits better. Both are self-hostable.