head to head · open source
koodo-reader vs vmprint
koodo-reader has 28,217 GitHub stars, 2,116 forks, 271 open issues and last shipped yesterday. vmprint has 676 stars, 30 forks, 1 open issues and last shipped 20 days ago. koodo-reader leads on adoption by 4,074% (28,217 vs 676 stars). koodo-reader is written in JavaScript under AGPL-3.0; vmprint is written in JavaScript under Apache-2.0. koodo-reader has attracted 7% as many forks as stars, vmprint 4%. 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 | vmprint | |
|---|---|---|
| GitHub stars | ★ 28K | ★ 676 |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | JavaScript | JavaScript |
| Last push | 2026-09-17 | 2026-08-29 |
| Forks | ⑂ 2.1K | ⑂ 30 |
| 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 vmprint if
- You want the vmprint feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and vmprint 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 vmprint
VMPrint is an Apache 2.0 layout engine written in JavaScript that decides where every glyph goes and returns a flat array of exact X/Y coordinates, built for teams creating Canvas or WebGL tools, high volume report generators, print on demand pipelines, document editors, and edge runtime deployments.
read the full vmprint overview →
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Frequently asked questions
Is koodo-reader or vmprint more popular?
koodo-reader has 28,217 GitHub stars and vmprint has 676. koodo-reader has the larger community by that measure.
Are koodo-reader and vmprint free?
Both are open source. koodo-reader is licensed under AGPL-3.0 and vmprint under Apache-2.0. Neither carries a licence fee.
What is the difference between koodo-reader and vmprint?
koodo-reader is written in JavaScript and vmprint in JavaScript. 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 vmprint?
Choose koodo-reader if you want the larger community (28,217 stars) or its AGPL-3.0 licence terms. Choose vmprint if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.