Oryx opens markdown, source code and plain text files, and reads ebooks (EPUB, FB2, MOBI and AZW3) and comics (CBZ and CBR). A document displays in under 100 ms, even an 8 MB markdown file or a 200 MB book, and memory stays flat however far you scroll. There are no panes, no toolbars and no menus: everything is done from the keyboard, F1 lists the shortcuts and Esc closes whatever is open.
Markdown is rendered the way GitHub shows it, with syntax colors for over a hundred languages and typeset TeX math. Over thirty themes with editable colors apply to reading and to PDF export alike, and the exported PDF reproduces the page as read. Fonts for Latin, Arabic and Hebrew are embedded, and right-to-left books read correctly.
Oryx is a single binary with no browser engine, no runtime and no GPU requirement. It asks for no account and sends no telemetry. The only thing it downloads is the images a markdown file links to. Oryx is also a light editor for markdown and text, and it writes back only the lines that changed.
Publisher’s description
What is Oryx?
Oryx by Steerania is open-source Windows software in the e-book readers category. It is written in Rust.
Installation and requirements
The publisher provides MSI installers for 64-bit Windows. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches. An MSI package is available for deployment with Group Policy, Intune or Configuration Manager.
Updates and version history
The current version is 1.2.2, released on October 21, 2026. The version history goes back to August 27, 2026: 3 releases, all linked to the official files. The last update is less than a month old.
Popularity and file types
The source code on GitHub (wmahfoudh/oryx) has 159 stars. On Windows it registers 11 file types, including .txt, .md, .epub, .markdown and .cbr. Similar programs include calibre, SumatraPDF and Kindle Comic Converter.
Project description on GitHub: “A fast, native and beautiful desktop viewer & editor for markdown and code with PDF export and eBooks rendering.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- MSI package for managed deployment
- Documented silent install
- Updated in the last two months
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: Oryx is an open-source e-book reader tool for 64-bit PCs. Administrators can deploy it unattended.
Is Oryx safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
57EED0BBEE161E6C69873DAC1509D503AA0ACB8097A4AD6AC82547EAE224BA5F· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 3 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.2.2Latest | October 21, 2026 | — | 64-bit MSI |
| 1.1.0 | September 7, 2026 | — | 64-bit MSI |
| 1.0.0 | August 27, 2026 | — | 64-bit MSI |
Install from the command line
Silent install ›winget install --id Steerania.Oryx -emsiexec /i oryx-1.2.2-windows-x86_64.msi /qn /norestartmsiexec /x {F15B934C-AEFA-4107-B127-FCBB1320B067} /qn /norestartRelated guide: How to use winget: install and update apps
Information
- Publisher
- Steerania
- Category
- E-book readers
- Licence
- GPL-3.0-only
- Price
- Free
- Source code
- github.com/wmahfoudh/oryx
- Written in
- Rust
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- MSI
- Version
- 1.2.2
- Released
- October 21, 2026
- Added to the catalogue
- October 7, 2026
- Versions listed
- 3
- GitHub stars
- 159
- GitHub forks
- 8
- Website
- github.com
- winget ID
- Steerania.Oryx
- MSI product code
- {F15B934C-AEFA-4107-B127-FCBB1320B067}
File types it opens (11)
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to Oryx
See all ›-
Open source1.5M ↓ -
SumatraPDF3.6.1SumatraPDF is a multi-format (PDF, EPUB, MOBI, CBZ, CBR, FB2, CHM, XPS, DjVu) reader for Windows.Open source3M ↓ -
Kindle Comic Converter12.0.0Kindle Comic Converter is a Python app to convert comic/manga files or folders to EPUB, Panel View MOBI or E-Ink optimized CBZ.Open source6K ↓ -
Sigil2.8.1Sigil is a free, open source, multi-platform ebook editor that uses Qt (and QtWebEngine). It is designed to edit books in ePub format (both ePub 2 and ePub 3).Open source34.5K ↓ -
Open source34K ↓ -
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Suwayomi Serverv2.4.2366A free and open source manga reader that runs extensions built for Mihon(Tachiyomi).Open source4.7K ↓
Frequently asked questions
Is Oryx free?
Yes. Oryx is open-source software under the GPL-3.0-only licence.
Is Oryx safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Oryx with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Oryx be installed silently?
Yes. The silent install page lists the exact command for each installer, including msiexec for the MSI package.
Does Oryx run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Oryx?
The versions page lists all 3 versions with links to their official installer files, back to August 27, 2026.
What are alternatives to Oryx?
calibre, SumatraPDF, Kindle Comic Converter, Sigil and BlueGriffon. The alternatives page compares them.
