Episteme Reader is a graphical document and e-book reader built around an offline-first approach.
It provides a common reading environment for conventional e-books, PDFs, office documents, text files and comics, with an emphasis on letting users adjust how material is presented rather than imposing a fixed reading layout. The desktop application supports Linux and uses a shared Kotlin Multiplatform core with Compose Multiplatform for its interface.
Episteme is particularly suited to users whose reading library spans several document formats, as the same application can handle reflowable books, fixed-layout PDFs and simpler text-based material. Its local library facilities keep reading progress and organisation close to the files themselves, while an offline desktop edition disables online services for users who prefer a completely local reading environment.
This is free and open source software.
Key Features
- Reads PDF, EPUB, MOBI/AZW3, FB2, DOCX, ODT/FODT, TXT, Markdown, HTML and comic archives.
- Offers paginated reading, vertical scrolling, automatic scrolling and PDF reflow.
- Supports multiple PDF tabs for working with more than one document.
- Provides PDF ink annotations, highlighting, erasing and text annotations.
- Includes configurable application and reader themes.
- Lets users adjust fonts, typography, spacing, margins and other layout properties.
- Supports custom locally installed fonts.
- Provides local folder synchronization, library organisation and file management.
- Tracks reading progress and provides bookmarks.
- Includes system text-to-speech support.
- Offers an offline desktop build with online services disabled.
Website: github.com/Aryan-Raj3112/episteme
Support:
Developer: Aryan Raj
License: GNU Affero General Public License version 3 only
Episteme Reader is written in Kotlin. Learn Kotlin with our recommended free books and free tutorials.
Related Software
| GUI eBook readers | |
|---|---|
| KOReader | Versatile document viewer for a wide variety of file formats |
| Koodo Reader | All-in-one ebook reader |
| Foliate | Simple and modern GTK eBook viewer. It's beautifully designed |
| Calibre | e-book library management application with excellent feature set |
| readest | Modern, feature-rich ebook reader |
| Thorium | Desktop reading app, based on the Readium Desktop toolkit. |
| Librum | Modern e-book reader and library manager |
| Lector | Qt based e-book reader |
| Bookworm | Simple, focused e-book reader |
| Arianna | ebook reader and library management app |
| crqt-ng | Fork of the CoolReader project |
| CoolReader | Cross-platform XML/CSS based eBook reader |
| apvlv | PDF/EPUB/TXT/FB2/MOBI/CBZ/HTML …viewer |
| FBReader | Makes it simple to access free literature |
Read our verdict in the software roundup.
 Explore our carefully curated directory of recommended free and open source software, covering every major software category.The directory forms part of our extensive collection of articles for Linux enthusiasts. It includes hundreds of detailed reviews, together with free and open source alternatives to proprietary software from companies such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. LinuxLinks also covers interesting projects worth exploring, Linux-compatible hardware, free programming books and tutorials, and much more. Know a useful free and open source Linux application that we haven’t covered? Tell us about it using our submission form. |
Please read our Comment Policy before commenting.