PdfDing vs Sioyek
Comparing two open source alternatives to Adobe Acrobat and Foxit Reader. Use the comparison below to decide which one fits your needs.
PdfDing
AGPL-3.0Self-hosted PDF manager, viewer, and editor with multi-device sync, tagging, and an in-browser reader; deployable via Docker.
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
| PdfDing | Sioyek | |
|---|---|---|
| License | AGPL-3.0 | GPL-3.0 |
| Self-hostable | Yes | No |
| GitHub Stars | 20 | 9,902 |
| Forks | — | 382 |
| Open Issues | 10 | 338 |
| Last Commit | Sep 12, 2026 | Sep 24, 2026 |
| First Released | Aug 25, 2026 | Jul 11, 2021 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
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