sioyek

The premium Open Source alternative to Adobe Acrobat

🎯 Best for:Power users reading dense technical documentation and research papers.

What is sioyek?

Replaces standard PDF readers like Adobe Acrobat for academic and technical workflows. It features portal-based navigation and keyboard-driven interactions for navigating large, cross-referenced documents.

Tech Stack
COS & Utilities

Why sioyek?

  • Advanced cross-reference jumping
  • Extensible via scripts
  • Support for multiple monitors

Limitations

  • Steep learning curve
  • Minimalist UI lacks buttons
  • No PDF editing features
3/6/2026
Last Update
305
Forks
285
Issues
GPL-3.0
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to sioyek instantly boosts your runway.

Competitor Cost
-$7,080
/ year (est. based on Adobe Acrobat)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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