DartPDF vs Sioyek
Comparing two open source alternatives to Adobe Acrobat and Foxit Reader and Nitro PDF. Use the comparison below to decide which one fits your needs.
DartPDF
Apache-2.0A free, local PDF editor for mobile, desktop, and web. Annotate, fill forms, sign, and redact with no account or uploads.
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
| DartPDF | Sioyek | |
|---|---|---|
| License | Apache-2.0 | GPL-3.0 |
| Self-hostable | No | No |
| GitHub Stars | 86 | 9,932 |
| Forks | 17 | 386 |
| Open Issues | 12 | 341 |
| Last Commit | Oct 10, 2026 | Oct 7, 2026 |
| First Released | Jun 9, 2026 | Jul 11, 2021 |
| Categories | ||
| Tags |
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