Thorium Reader

Thorium Reader is a reading application for digital publications. It supports standard formats such as EPUB, PDF, audiobooks, and web books. The software is developed by EDRLab. The interface is available in multiple languages. The application displays content with customization options. Users can adjust the layout, font size, and colors. Navigation is done via the table of contents. Synchronization of bookmarks and reading progress works across different devices. Readers can add annotations and highlights to the text. The application includes a read-aloud mode with synthetic voices.

★★★★★

5.0(1 ratings)

• Cross-platform support. The application runs on Windows, macOS, and Linux systems. Installation is done using executable files specific to each platform. It requires no specialized hardware to operate.
• Format compatibility. Thorium Reader opens EPUB 2, EPUB 3, PDF, LCP-protected audiobooks, and web publications. Content rendering maintains the original specifications of each format. Interactive elements display according to standards.
• Visual customization. Display settings include modifying font size, line spacing, and margins. Available color themes are light, dark, and sepia. Typography can be changed between various serif and sans-serif fonts.
• Structural navigation. The table of contents shows the complete document hierarchy. Navigation elements allow jumping between chapters and sections. The search function indexes all text within the document.
• Audio reading mode. Text-to-speech reproduces textual content with configurable voices. Reading speed adjusts between 0.5x and 3x normal speed. Visual synchronization highlights the text as the audio plays.
• Annotation system. Users can add comments and highlights anywhere in the text. Annotations are organized by color and category. Annotation export generates a JSON format file.
• Library management. The interface displays books organized by date added or title. Search filters documents by metadata. Books are imported by dragging files onto the workspace.
• Comprehensive accessibility. The application complies with WCAG 2.1 AA guidelines. Screen reader support includes NVDA, JAWS, and VoiceOver. Keyboard navigation implements industry-standard shortcuts.
• Content protection. LCP support manages digital rights for library loans. Authentication uses passwords up to 32 characters. The loan history shows expiration dates.
• Cross-platform synchronization. Reading progress is automatically saved every 30 seconds. Bookmarks are stored in OPDS format. Session restoration retrieves the last read position.
• Presentation mode. Full-screen viewing hides interface elements. Image zoom enlarges graphic content up to 400%. Automatic rotation adjusts the layout on devices with accelerometers.
• Reading statistics. The system logs time spent on each reading session. Speed calculation shows words per minute. Reports generate weekly and monthly progress charts.

Development of Thorium Reader began in 2019 by the European Digital Reading Lab. The development team includes engineers from France and other European countries. The application is written in TypeScript using the Electron framework. The first public version was released in January 2020.

Alternatives to Thorium Reader:

ACBR

ACBR processes CBZ, CBR, CB7, PDF, EPUB files and image formats including JPG, PNG, WebP, and AVIF.

Price: Free   Size: 192 MB   Version: 3.21.1   OS: Windows, Linux

Anx Reader

Anx Reader is an eBook reading application designed specifically for discerning readers.

Price: Free   Size: 24.2 MB   Version: 1.12.0   OS: Windows, Mac OS, Android, iOS

YACReader

YACReader (Yet Another Comic Reader) is an application for reading and organizing digital comic files.

Price: Free   Size: 52.4 MB   Version: 9.16.1   OS: Windows, Linux, MacOS, iOS

Mangayomi

Mangayomi is an application for reading manga, comics, and manhwa from various sources.

Price: Free   Size: 60.5 MB   Version: 0.7.75   OS: Windows, Linux, MacOS, Android, iOS