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Sioyek project preview
Developer ToolsAlternative to PreviewAlternative to Foxit ReaderAlternative to Adobe Acrobat

Sioyek

PDF viewer designed specifically for reading research papers and technical textbooks.

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LicenseGPL-3.0
GitHub stars7.5k
Last commit1 weeks ago
Tags6 topics
Academic ReaderKeyboard DrivenOpengl PdfPdf ViewerResearch PapersProductivity
Overview

Why consider Sioyek?

Sioyek is an open-source PDF viewer written in C++ and OpenGL tailored for academic research papers and textbooks. It features portal jumps, figure and table preview tooltips, dual-screen reference views, smart citation searches, and customizable keyboard shortcuts.

Guided learning

Learn Sioyek by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of Sioyek

Sioyek links math equations, figures, and bibliographic citations with instant hover preview portals.

Installation

Download Sioyek binaries for Windows, macOS, or Linux from sioyek.info.

Sioyek is licensed under the GNU General Public License v3.0 (GPL-3.0).

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Sioyek FAQs

Sioyek is listed as a Developer Tools tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

Sioyek is listed under the GPL-3.0 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

Sioyek is listed as an alternative to Preview. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.