Cool Reader 3.3.61 – E‑Book Reader

Cool Reader 3.3.61 is a lightweight, open-source e‑reader application compatible with Windows, Linux, and Android. Designed for users who want a fast and customizable reading experience, it supports many common e-book formats and offers flexible interface options without unnecessary complexity and see Foxit Reader 2025.

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🔑 Key Features

• Multi‑Format Support: Read FB2, EPUB, MOBI, TXT, HTML, and RTF files effortlessly.

• Customizable Layouts: Adjust fonts, margins, line spacing, colors, and themes (day/night).

• Text-to-Speech (TTS): Listen to books using built-in TTS support via speech engines.

• Table of Contents & Bookmarks: Navigate easily with automatic TOC handling and bookmarking.

• Page Flip Effects: Enjoy sliding or page-turn animations for a realistic reading feel.

• Annotations & Highlights: Add notes, highlight passages, and export annotations.

• Library View: Organize books by author, title, or date in an intuitive library interface.

• Dictionary Integration: Quickly look up words using built-in or external dictionaries.

• Plugin Support: Extend with features like font presets, auto-scroll, and embedded audio support.

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🆕 What’s New in Version 3.3.61

• Optimized performance for large files and smoother scrolling.

• Improved EPUB parsing and rendering, especially with complex layouts.

• Enhanced TTS voice synchronization and settings.

• Fixed UI glitches and improved stability across all platforms.

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👥 Ideal For

• Avid readers who want a fast, lightweight e‑reader.

• Users working with multiple formats on desktop or mobile.

• Readers who prefer customizable themes and layouts.

• Users needing TTS for hands-free reading.

• Anyone wanting open-source alternatives to mainstream apps.

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✅ Why Choose Cool Reader?

• Exceptionally light on system resources.

• Supports a wide variety of e-book formats.

• Highly customizable interface and reading mode options.

• Built-in TTS and annotation tools enhance accessibility.

• Cross-platform availability keeps your library in sync.

✔ Tested: This software was tested on Windows 10 & Windows 11 and works smoothly without issues.

Frequently Asked Questions

• Is this software free?
  Yes, it can be downloaded and used for free.
• Does it support Windows 11?
  Yes, it works perfectly on Windows 10 and 11.
• Is it safe to use?
  Yes, the software was scanned and tested before publishing.

Last updated: February 2026