readest – readest
Readest 是一款专为重度阅读者打造的现代多功能电子书阅读器，提供无缝跨平台访问、强大工具及直观界面，全面提升阅读体验。
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README 详细介绍
Readest
[Readest][link-website] is an open-source ebook reader designed for immersive and deep reading experiences. Built as a modern rewrite of Foliate, it leverages Next.js 16 and Tauri v2 to deliver a smooth, cross-platform experience across macOS, Windows, Linux, Android, iOS, and the Web.
[![Website][badge-website]][link-website]
[![Web App][badge-web-app]][link-web-readest]
[![OS][badge-platforms]][link-website]
[![Discord][badge-discord]][link-discord]
[![Reddit][badge-reddit]][link-reddit]
[![AGPL Licence][badge-license]](LICENSE)
[![Language Coverage][badge-language-coverage]][link-locales]
[![Donate][badge-donate]][link-donate]
[![Latest release][badge-release]][link-gh-releases]
[![Last commit][badge-last-commit]][link-gh-commits]
[![Commits][badge-commit-activity]][link-gh-pulse]
[![][badge-hellogithub]][link-hellogithub]
[![Ask DeepWiki][badge-deepwiki]][link-deepwiki]
Features •
Planned Features •
Screenshots •
Downloads •
Documentation •
Getting Started •
Troubleshooting •
Support •
License
Features
| Feature | Description | Status |
|---|---|---|
| Multi-Format Support | Support EPUB, PDF, MOBI, KF8 (AZW3), FB2, CBZ, TXT, MD (Markdown) | ✅ |
| Scroll/Page View Modes | Switch between scrolling or paginated reading modes. | ✅ |
| Full-Text Search | Search inside a book or across the current library shelf to find relevant sections. | ✅ |
| Annotations and Highlighting | Add highlights, bookmarks, and notes to enhance your reading experience and use instant mode for quicker interactions. | ✅ |
| Dictionary/Wikipedia Lookup | Instantly look up words and terms when reading. | ✅ |
| [Parallel Read][link-parallel-read] | Read two books or documents simultaneously in a split-screen view. | ✅ |
| Customize Font and Layout | Adjust font, layout, theme mode, and theme colors for a personalized experience. | ✅ |
| Code Syntax Highlighting | Read software manuals with rich coloring of code examples. | ✅ |
| File Association and Open With | Quickly open files in Readest in your file browser with one-click. | ✅ |
| Library Management | Organize, sort, and manage your entire ebook library. | ✅ |
| OPDS/Calibre Integration | Integrate OPDS/Calibre to access online libraries and catalogs. | ✅ |
| Translate with DeepL and Yandex | From a single sentence to the entire book—translate instantly. | ✅ |
| Text-to-Speech (TTS) Support | Enjoy smooth, multilingual narration—even within a single book. | ✅ |
| Sync across Platforms | Synchronize book files, reading progress, notes, and bookmarks across all supported platforms. | ✅ |
| [Sync with Koreader][link-kosync-wiki] | Synchronize reading progress, notes, and bookmarks with [Koreader][link-koreader] devices. | ✅ |
| Accessibility | Provides full keyboard navigation and support for screen readers such as VoiceOver, TalkBack, NVDA, and Orca. | ✅ |
| Visual & Focus Aids | Reading ruler, paragraph-by-paragraph reading mode, and speed reading features. | ✅ |
| Feature | Description | Priority |
|---|---|---|
| AI-Powered Summarization | Generate summaries of books or chapters using AI for quick insights. | 🛠 |
| Advanced Reading Stats | Track reading time, pages read, and more for detailed insights. | 🛠 |
| Audiobook Support | Extend functionality to play and manage audiobooks. | 🔄 |
| Handwriting Annotations | Add support for handwriting annotations using a pen on compatible devices. | 🔄 |
Stay tuned for continuous improvements and updates! Contributions and suggestions are always welcome—let's build the ultimate reading experience together. 😊
Screenshots
Downloads
Mobile Apps
Platform-Specific Downloads
- macOS / iOS / iPadOS : Search and install Readest on the [App Store][link-appstore], _also_ available on TestFlight for beta test (send your Apple ID to to request access).
- Windows / Linux / Android: Visit and download Readest at [https://readest.com][link-website] or the [Releases on GitHub][link-gh-releases].
- Linux users can also install [Readest on Flathub][link-flathub].
- Web: Visit and use Readest for Web at [https://web.readest.com][link-web-readest].
Documentation
Guides, tutorials, and FAQs for installing and using Readest live in the official documentation:
📖 [https://readest.com/docs][link-docs]
Building from Source
To build Readest from the latest commit, see Getting Started.
Troubleshooting
1. Readest Won’t Launch on Windows (Missing Edge WebView2 Runtime)
Symptom
- When you double-click readest.exe, nothing happens. No window appears, and Task Manager does not show the process.
- This can affect both the standard installer and the portable version.
Cause
- Microsoft Edge WebView2 Runtime is either missing, outdated, or improperly installed on your system. Readest depends on WebView2 to render the interface on Windows.
How to Fix
- Check if WebView2 is installed
- Open “Add or Remove Programs” (a.k.a. Apps & features) on Windows. Look for “Microsoft Edge WebView2 Runtime.”
- Install or Update WebView2
- Download the WebView2 Runtime directly from Microsoft: link.
- If you prefer an offline installer, download the offline package and run it as an Administrator.
- Re-run Readest
- After installing/updating WebView2, launch readest.exe again.
- If you still encounter problems, reboot your PC and try again.
Additional Tips
- If reinstalling once doesn’t work, uninstall Edge WebView2 completely, then reinstall it with Administrator privileges.
- Verify your Windows installation has the latest updates from Microsoft.
Still Stuck?
- See Issue readest/readest#358 for further details, or head over to our [Discord][link-discord] server and open a support discussion with detailed logs of your environment and the steps you’ve taken.
2. AppImage Launches but Only Shows a Taskbar Icon
On some Arch Linux systems—especially those using Wayland—the Readest AppImage may briefly show an icon in the taskbar and then exit without opening a window.
You might see logs such as:
Could not create default EGL display: EGL_BAD_PARAMETER. Aborting...This behavior is usually caused by compatibility issues between the bundled AppImage libraries and the system’s EGL / Wayland environment.
Workaround 1: Launch with LD_PRELOAD (recommended)
You can preload the system Wayland client library before launching the AppImage:
LD_PRELOAD=/usr/lib/libwayland-client.so /path/to/Readest.AppImageThis workaround has been confirmed to resolve the issue on affected systems.
Workaround 2: Use the Flatpak Version
If you prefer a more reliable out-of-the-box experience on Arch Linux, consider using the [Flatpak build on Flathub][link-flathub] instead. The Flatpak runtime helps avoid system library mismatches and tends to behave more consistently across different Wayland and X11 setups.
Contributors
Readest is open-source, and contributions are welcome! Feel free to open issues, suggest features, or submit pull requests. Please review our contributing guidelines before you start. We also welcome you to join our [Discord][link-discord] community for either support or contributing guidance.
Support
If Readest has been useful to you, consider supporting its development at donate.readest.com, where you'll find all available donation methods, including GitHub Sponsors, card payments, and crypto. Your contribution helps us fix bugs faster, improve performance, and keep building great features.
License
Readest is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. See the LICENSE file for details.
The following libraries and frameworks are used in this software:
- foliate-js, which is MIT licensed.
- zip.js, which is licensed under the BSD-3-Clause license.
- fflate, which is MIT licensed.
- PDF.js, which is licensed under Apache License 2.0.
- daisyUI, which is MIT licensed.
- marked, which is MIT licensed.
- next.js, which is MIT licensed.
- react-icons, which has various open-source licenses.
- react, which is MIT licensed.
- tauri, which is MIT licensed.
The following fonts are utilized in this software, either bundled within the application or provided through web fonts:
Bitter, Fira Code, Inter, Literata, Merriweather, Noto Sans, Roboto, LXGW WenKai, MiSans, Source Han, WenQuanYi Micro Hei
We would also like to thank the Web Chinese Fonts Plan for offering open-source tools that enable the use of Chinese fonts on the web.
[badge-website]: https://img.shields.io/badge/website-readest.com-orange
[badge-web-app]: https://img.shields.io/badge/read%20online-web.readest.com-orange
[badge-license]: https://img.shields.io/badge/license-AGPL--3.0-teal
[badge-release]: https://img.shields.io/github/v/release/readest/readest?color=green
[badge-platforms]: https://img.shields.io/badge/platforms-macOS%2C%20Windows%2C%20Linux%2C%20Android%2C%20iOS%2C%20Web%2C%20PWA-green
[badge-last-commit]: https://img.shields.io/github/last-commit/readest/readest?color=blue
[badge-commit-activity]: https://img.shields.io/github/commit-activity/m/readest/readest?color=blue
[badge-discord]: https://img.shields.io/discord/1314226120886976544?color=5865F2&label=discord&labelColor=black&logo=discord&logoColor=white&style=flat-square
[badge-hellogithub]: https://abroad.hellogithub.com/v1/widgets/recommend.svg?rid=8a5b6ade2aee461a8bd94e59200682a7&claim_uid=eRLUbPOy2qZtDgw&theme=small
[badge-donate]: https://donate.readest.com/badge.svg
[badge-deepwiki]: https://deepwiki.com/badge.svg
[badge-reddit]: https://img.shields.io/reddit/subreddit-subscribers/readest?style=flat&logo=reddit&color=F37E41
[badge-language-coverage]: https://img.shields.io/badge/coverage-53%25%20population%20🌍-green
[link-donate]: https://donate.readest.com/?tickers=btc%2Ceth%2Csol%2Cusdc
[link-appstore]: https://apps.apple.com/app/apple-store/id6738622779?pt=127463130&ct=github&mt=8
[link-website]: https://readest.com?utm_source=github&utm_medium=referral&utm_campaign=readme
[link-flathub]: https://flathub.org/en/apps/com.bilingify.readest
[link-web-readest]: https://web.readest.com
[link-docs]: https://readest.com/docs
[link-gh-releases]: https://github.com/readest/readest/releases
[link-gh-commits]: https://github.com/readest/readest/commits/main
[link-gh-pulse]: https://github.com/readest/readest/pulse
[link-gh-wiki]: https://github.com/readest/readest/wiki
[link-discord]: https://discord.gg/gntyVNk3BJ
[link-parallel-read]: https://readest.com/#parallel-read
[link-koreader]: https://github.com/koreader/koreader
[link-hellogithub]: https://hellogithub.com/repository/8a5b6ade2aee461a8bd94e59200682a7
[link-deepwiki]: https://deepwiki.com/readest/readest
[link-locales]: https://github.com/readest/readest/tree/main/apps/readest-app/public/locales
[link-kosync-wiki]: https://github.com/readest/readest/wiki/Sync-with-Koreader-devices
[link-reddit]: https://reddit.com/r/readest/
