head to head · open source
koodo-reader vs swift-toolkit
koodo-reader has 28,221 GitHub stars, 2,116 forks, 271 open issues and last shipped yesterday. swift-toolkit has 552 stars, 246 forks, 58 open issues and last shipped 2 days ago. koodo-reader leads on adoption by 5,013% (28,221 vs 552 stars). koodo-reader is written in JavaScript under AGPL-3.0; swift-toolkit is written in Swift under BSD-3-Clause. koodo-reader has attracted 7% as many forks as stars, swift-toolkit 45%. koodo-reader was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (cbz, epub), so they are genuine substitutes rather than adjacent tools.
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 | swift-toolkit | |
|---|---|---|
| GitHub stars | ★ 28K | ★ 552 |
| License | AGPL-3.0 | BSD-3-Clause |
| Written in | JavaScript | Swift |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 2.1K | ⑂ 246 |
| 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 swift-toolkit if
- You want the swift-toolkit feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches Swift
- You evaluated both and swift-toolkit 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 swift-toolkit
Readium Swift Toolkit Readium Mobile is a toolkit for ebooks, audiobooks and comics written in Swift & Kotlin. [!TIP] Take a look at the guide to quickly get started. A Test App demonstrates how to integrate the Readium Swift toolkit in your own reading app. Features ✅ Implemented 🚧 Partially implemented 📆 Planned 👀 Want to do ❌ Not planned Formats Ebook and Document Formats Audiobook Formats Comic Formats Features A number of features are implemented only for some publication formats. OPDS Support DRM Support User Guides Guides are available to help you make the most of the toolkit. Publication Opening a publ…
read the full swift-toolkit overview →
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Frequently asked questions
Is koodo-reader or swift-toolkit more popular?
koodo-reader has 28,221 GitHub stars and swift-toolkit has 552. koodo-reader has the larger community by that measure.
Are koodo-reader and swift-toolkit free?
Both are open source. koodo-reader is licensed under AGPL-3.0 and swift-toolkit under BSD-3-Clause. Neither carries a licence fee.
What is the difference between koodo-reader and swift-toolkit?
koodo-reader is written in JavaScript and swift-toolkit in Swift. 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 swift-toolkit?
Choose koodo-reader if you want the larger community (28,221 stars) or its AGPL-3.0 licence terms. Choose swift-toolkit if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.