sioyek

From public sources

Sioyek is a fast, open-source desktop PDF viewer for textbooks and research papers, with smart jumps to figures and references and a portal-based workflow.

ApplicationCategory: Desktop Apps · Office & notesOpen sourcedata checked Oct 15, 2026

Overview

Reading textbooks and research papers often means constantly jumping back and forth between a paragraph and a referenced figure, table or bibliography entry, and losing your place in the process. Sioyek is a PDF viewer built for this kind of reading. Its Smart Jump and Overview features let you reach referenced figures and bibliography items even when the PDF does not provide links, and marks and bookmarks let you return to earlier positions quickly. Other capabilities include quick open for recently used files, table of contents search, text highlights that can be searched, and portals that keep a linked figure visible in a separate window, which is especially useful with multiple monitors. Key bindings and some interface elements can be customized through configuration files. Sioyek is released under the GPL-3.0 license and is available as installers for Windows, macOS and Linux, through Homebrew Cask and several Linux package managers, or as a build from source. It suits students, researchers and anyone who reads long technical documents on a desktop.
  • pdf
  • pdf-viewer
  • research-paper

Installation

Commands are shown, never run by the marketplace. Check them against the official documentation.

Compatibility

Unknown means no evidence was found — not that the product is incompatible.
PlatformStatusArchitectureEvidenceConfidence
WindowsCompatible—official build in release v2.0.0: sioyek-release-windows-portable.zip0.60
macOSCompatible—official build in release v2.0.0: sioyek-release-mac.zip0.60
LinuxCompatible—official build in release v2.0.0: sioyek-release-linux-portable.zip0.60

Releases

checked Oct 29, 2026
v2.0.0LatestDec 16, 2022Official source ↗

Files in 2.0.0

The marketplace does not host these files: downloads go to the official source. Files have not been scanned by us.
FilePlatformSizeSHA-256Download from the official source
sioyek-release-linux-portable.ziplinux · zip54.9 MB—Official source ↗
sioyek-release-linux.ziplinux · zip54.8 MB—Official source ↗
sioyek-release-mac.zipmacos · zip40.2 MB—Official source ↗
sioyek-release-windows-portable.zipwindows · zip73.6 MB—Official source ↗
sioyek-release-windows.zipwindows · zip73.6 MB—Official source ↗

Release history

Quality profile

algorithm quality-v1.0 · assessed Oct 15, 2026
Quality Score96
Risk Score0
Confidence 1.00
Quality Score and Risk Score are different measures. A high score does not guarantee safety.

Score components

Maintenance · 2020
last activity 9 days ago
Documentation · 1515
README 8400 chars, description present
Ready to use · 1515
install instructions: yes; releases: yes
Metadata · 1010
4/4 of description, homepage, license, topics
Releases · 106
10 release(s), latest 764 days ago
Category confidence · 1010
classifier confidence 1
Adoption · 1010
9947 stars (log-dampened, 10k = max)
License clarity · 55
SPDX GPL-3.0
Community · 55
issues enabled, 388 forks

License

GPL-3.0
Known licensefrom the repository host

This is the catalog policy status, not legal advice.

Sources

github.com/ahrm/sioyekPrimary★ 9,947 starslast activity Oct 7, 2026Primary repository · Confidence 1.00

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README

From ahrm/sioyek · license GPL-3.0 · fetched Oct 29, 2026

Sioyek

Sioyek is a PDF viewer with a focus on textbooks and research papers.

Development Branch FAQ

Q: There are build errors with Qt 5.*.

A: If you are building the development branch you need to use Qt 6.7 or 6.8.

Q: On MacOS I get "sioyek is damaged and cannot be opened. It is recommended to eject the image.".

A: This is related to macOS quarantine. See https://github.com/ahrm/sioyek/discussions/1156#discussioncomment-10822738 .

Contents

  • Installation
  • Documentation
  • Video Demo
  • Features
  • Build Instructions
  • Buy Me a Coffee (or a Book!)

Install

Official packages

There are installers for Windows, macOS and Linux. See Releases page.

Homebew Cask

There is a homebrew cask available here: https://formulae.brew.sh/cask/sioyek. Install by running:

brew install --cask sioyek

Third-party packages for Linux

If you prefer to install sioyek with a package manager, you can look at this list. Please note that they are provided by third party packagers. USE AT YOUR OWN RISK! If you're reporting a bug for a third-party package, please mention which package you're using.

DistroLinkMaintainer
Flathubsioyek@nbenitez
Alpinesioyek@jirutka
ArchAUR sioyek@goggle
ArchAUR Sioyek-git@randomn4me
ArchAUR sioyek-appimage@DhruvaSambrani
Debiansioyek@viccie30
NixOSsioyek@podocarp
openSUSEPublishing@uncomfyhalomacro
openSUSEFactory@uncomfyhalomacro
Ubuntusioyek@viccie30

Documentation

You can view the official documentation here.

Feature Video Overview

[Sioyek feature overview]

For a more in-depth tutorial, see this video:

[Sioyek Tutorial]

Features

Quick Open

https://user-images.githubusercontent.com/6392321/125321111-9b29dc00-e351-11eb-873e-94ea30016a05.mp4

You can quickly search and open any file you have previously interacted with using sioyek.

Table of Contents

https://user-images.githubusercontent.com/6392321/125321313-cf050180-e351-11eb-9275-c2759c684af5.mp4

You can search and jump to table of contents entries.

Smart Jump

https://user-images.githubusercontent.com/6392321/125321419-e5ab5880-e351-11eb-9688-95374a22774f.mp4

You can jump to any referenced figure or bibliography item even if the PDF file doesn't provide links. You can also search the names of bibliography items in google scholar/libgen by middle clicking/shift+middle clicking on their name.

Overview

https://user-images.githubusercontent.com/6392321/154683015-0bae4f92-78e2-4141-8446-49dd7c2bd7c9.mp4

You can open a quick overview of figures/references/tables/etc. by right clicking on them (Like Smart Jump, this feature works even if the document doesn't provide links).

Mark

https://user-images.githubusercontent.com/6392321/125321811-505c9400-e352-11eb-85e0-ffc3ae5f8cb8.mp4

Sometimes when reading a document you need to go back a few pages (perhaps to view a definition or something) and quickly jump back to where you were. You can achieve this by using marks. Marks are named locations within a PDF file (each mark has a single character name for example 'a' or 'm') which you can quickly jump to using their name. In the aforementioned example, before going back to the definition you mark your location and later jump back to the mark by invoking its name. Lower case marks are local to the document and upper case marks are global (this should be very familiar to you if you have used vim).

Bookmarks

https://user-images.githubusercontent.com/6392321/125322503-1a6bdf80-e353-11eb-8018-5e8fc43b8d05.mp4

Bookmarks are similar to marks except they are named by a text string and they are all global.

Highlights

https://user-images.githubusercontent.com/6392321/130956728-7e0a87fa-4ada-4108-a8fc-9d9d04180f56.mp4

Highlight text using different kinds of highlights. You can search among all the highlights.

Portals (this feature is most useful for users with multiple monitors)

https://user-images.githubusercontent.com/6392321/125322657-41c2ac80-e353-11eb-985e-8f3ce9808f67.mp4

Suppose you are reading a paragraph which references a figure which is not very close to the current location. Jumping back and forth between the current paragraph and the figure can be very annoying. Using portals, you can link the paragraph's location to the figure's location. Sioyek shows the closest portal destination in a separate window (which is usually placed on a second monitor). This window is automatically updated to show the closest portal destination as the user navigates the document.

Configuration

https://user-images.githubusercontent.com/6392321/125337160-e4832700-e363-11eb-8801-0bee58121c2d.mp4

You can customize all key bindings and some UI elements by editing keys_user.config and prefs_user.config. The default configurations are in keys.config and prefs.config.

Build Instructions

Linux

Fedora

Run the following commands to install dependencies, clone the repository and compile sioyek on Fedora (tested on Fedora Workstation 36).

sudo dnf install qt5-qtbase-devel qt5-qtbase-static qt5-qt3d-devel harfbuzz-devel
git clone --recursive --branch development https://github.com/ahrm/sioyek
cd sioyek
./build_linux.sh
Generic distribution
  1. Install Qt 5 and make sure qmake is in PATH.

    Run qmake --version to make sure the qmake in path is using Qt 5.x.

  2. Install libharfbuzz:

sudo apt install libharfbuzz-dev
  1. Clone the repository and build:
git clone --recursive --branch development https://github.com/ahrm/sioyek
cd sioyek
./build_linux.sh

Windows

  1. Install Visual Studio (tested on 2019, other relatively recent versions should work too)
  2. Install Qt 5 and make sure qmake is in PATH.
  3. Clone the repository and build using 64 bit Visual Studio Developer Command Prompt:
git clone --recursive --branch development https://github.com/ahrm/sioyek
cd sioyek
build_windows.bat

Mac

  1. Uninstall previous Qt6 installed by Homebrew
  2. Install Xcode.
  3. Install Qt6.
pip install aqtinstall
cd /path/to/qt
aqt install-qt mac desktop 6.8.2 clang_64 -m all
export Qt6_DIR=/path/to/qt/6.8.2/macos/
export QT_PLUGIN_PATH=/path/to/qt/6.8.2/macos/plugins
export PKG_CONFIG_PATH=/path/to/qt/6.8.2/macos/lib/pkgconfig
export QML2_IMPORT_PATH=/path/to/qt/6.8.2/macos/qml
export PATH="/path/to/qt/6.8.2/macos/bin:$PATH"
  1. Clone the repository, build and install:
git clone --recursive --branch development https://github.com/ahrm/sioyek
cd sioyek
chmod +x build_mac.sh
setopt PIPE_FAIL PRINT_EXIT_VALUE ERR_RETURN SOURCE_TRACE XTRACE
MAKE_PARALLEL=8 ./build_mac.sh

mv build/sioyek.app /Applications/
sudo codesign --force --sign - --deep /Applications/sioyek.app

Donation

If you enjoy sioyek, please consider donating to support its development.

Open the repository ↗