Koodo Reader vs Sioyek
Comparing two open source alternatives to Adobe Acrobat and Foxit Reader. Use the comparison below to decide which one fits your needs.
Koodo Reader
AGPL-3.0Cross-platform ebook reader supporting PDF, EPUB, MOBI, comics and more, with sync across Windows, macOS, Linux, Android, iOS, and Web.
Sioyek
GPL-3.0Cross-platform PDF viewer focused on textbooks and research papers with smart navigation, marks, bookmarks, and bibliography jumping.
Side-by-side comparison
| Koodo Reader | Sioyek | |
|---|---|---|
| License | AGPL-3.0 | GPL-3.0 |
| Self-hostable | No | No |
| GitHub Stars | 28,342 | 9,902 |
| Forks | 2,117 | 382 |
| Open Issues | 271 | 338 |
| Last Commit | Sep 27, 2026 | Sep 24, 2026 |
| First Released | Mar 5, 2020 | Jul 11, 2021 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
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