Open Source Mobile Operating Systems eBook Readers

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eBook Readers for Mobile Operating Systems

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Browse free open source eBook Readers and projects for Mobile Operating Systems below. Use the toggles on the left to filter open source eBook Readers by OS, license, language, programming language, and project status.

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  • 1
    KOReader

    KOReader

    An ebook reader application supporting PDF, DjVu, EPUB, FB2, etc.

    KOReader is a document viewer for E Ink devices. Supported fileformats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files. It’s available for Kindle, Kobo, PocketBook, Android and desktop Linux. Runs on embedded devices (Cervantes, Kindle, Kobo, PocketBook, reMarkable), Android and Linux computers. Developers can run a KOReader emulator in Linux and MacOS. Multi-lingual user interface with a highly customizable reader view and many typesetting options. You can set arbitrary page margins, override line spacing and choose external fonts and styles. It has multi-lingual hyphenation dictionaries bundled into the application. Custom UI without animation, with paginated menus, adjustable text contrast, and easy zoom to fit content or page in paged media. Look up words with StarDict dictionaries / Wikipedia, add your own online OPDS catalogs and RSS feeds, share ebooks with other KOReader devices wirelessly.
    Downloads: 127 This Week
    Last Update:
    See Project
  • 2
    Cool Reader

    Cool Reader

    A cross-platform XML/CSS based eBook reader

    CoolReader is fast and small cross-platform XML/CSS based eBook reader for desktops and handheld devices. Supported formats: FB2, TXT, RTF, DOC, TCR, HTML, EPUB, CHM, PDB, MOBI. Platforms: Win32, Linux, Android. Ported on some eInk based devices.
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    176 Reviews
    Downloads: 379 This Week
    Last Update:
    See Project
  • 3
    Legado

    Legado

    Legado 3.0 Book Reader with powerful controls & full functions

    legado is a feature-rich open-source ebook reader for Android, focused on flexibility, extensibility, and customization. It supports local books, online book sources, and plugins for a personalized reading experience. With powerful configuration options, including layout settings, font control, and background customization, it’s ideal for avid readers looking for complete control over how they read digital content.
    Downloads: 16 This Week
    Last Update:
    See Project
  • 4
    Anx Reader

    Anx Reader

    Featuring powerful AI capabilities and supporting e-book formats

    Anx Reader is a polished, feature-rich e-book reader built with Flutter, designed for seamless reading across mobile and desktop. It supports major formats (EPUB, MOBI, AZW3, FB2, TXT) and integrates powerful AI tools for summarizing and intelligent navigation via OpenAI, Claude, Gemini, and DeepSeek. Anx also syncs progress, notes, and highlights over WebDAV, and offers rich analytics—including heatmaps and exportable reading summaries. UI customization and text-to-speech enhance the reading experience.
    Downloads: 10 This Week
    Last Update:
    See Project
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  • 5
    MyBookshelf

    MyBookshelf

    Read online content from customized sources

    MyBookshelf is an open-source Android reading app (known in Chinese as “阅读”) that lets users configure custom content sources to read web novels and other online text, offering a flexible alternative to fixed, vendor-controlled ebook stores. Instead of depending on a single provider, it uses “source rules” that define how to search, parse, and fetch chapters from multiple third-party sites, giving users control over where and how they obtain content. The app focuses on delivering a comfortable and customizable reading experience with options for themes, fonts, layouts, and reading behaviors, tuned to the preferences of heavy web-fiction readers. A disclaimer in the project makes it clear that the app itself only provides search and reading tools, and that responsibility for accessed content lies with the user and third-party sites.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 6
    TachiyomiJ2K

    TachiyomiJ2K

    Free and open source manga reader for Android

    TachiyomiJ2K is a free and open source manga reader for Android 6.0 and above. Based on the original Tachiyomi.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 7
    Trance App
    Klientská aplikace pro databázi elektronických knih Trance. Pomáhá prohlížet a vyhledat knihy a otevřít stahovací odkaz na externí úložiště. Dostupná pro Android, Windows a Linux.
    Downloads: 25 This Week
    Last Update:
    See Project
  • 8
    pReader
    pReader is an eBook Reader for WebOS (Palm Pre/Pixi and HP TouchPad) that is currently supporting plain-text, PalmDOC ePub, and various other eBook formats (without DRM). It is written entirely in JavaScript and reads the files directly from the media partition. A beta version that uses a native C++ backend is also available.
    4 Reviews
    Downloads: 3 This Week
    Last Update:
    See Project
  • 9

    Librum

    A modern ebook reader and library manager

    Librum is an application designed to make reading enjoyable and straightforward for everyone. It's not just an e-book reader. With Librum, you can manage your own online library and access it from any device anytime, anywhere. It has features like note-taking, bookmarking, and highlighting, while offering customization to make it as personal as you want! Librum also provides free access to over 70,000 books and personal reading statistics while being free and completely open source.
    Downloads: 4 This Week
    Last Update:
    See Project
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  • 10
    e-Book manager V5

    e-Book manager V5

    Book Manager An efficient and user-friendly eBook management tool

    e-Book manager V5 📱 Mobilalkalmazás : https://play.google.com/store/apps/dev?id=6200735506701691028&hl=en_US 📚 E-könyvkezelés egyszerűen és hatékonyan! Töltsd le most, és élvezd a digitális könyvtár szabadságát! Az alkalmazással könnyedén feltöltheted, rendszerezheted és testre szabhatod e-könyveidet. 🔹 Fő funkciók: 📂 Könyvkezelés: Egyszerű fájlimportálás és rendszerezés. ✏️ Szerkesztés: Cím, szerző, metaadatok módosítása, egyedi címkék hozzáadása. 🖼️ Borítókép: Saját kép feltöltése vagy automatikus generálás. 🔍 Gyors keresés: Találd meg könyveidet pillanatok alatt. ⚙️ Testreszabás: 🌐 Többnyelvű támogatás 🌙 Világos/sötét mód 🔗 Töltsd le a PC alkalmazást: SourceForge – E-book Manager V5 Google Play store: coming
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Myne

    Myne

    An android app to download ebooks from Project Gutenberg

    Myne is a FOSS Android application to download ebooks from Project Gutenberg, it uses GutenDex API to fetch metadata of ebooks in the backend.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    P2P BoookShare

    P2P BoookShare

    Intuitive Flutter app facilitating easy book borrowing

    A user-friendly Flutter app for college students to share and borrow books on campus.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    Reader

    Reader

    Kotlin + Spring Boot + Vert.x + Coroutine

    Reader is an open-source Android application designed for online and offline reading of web novels, manga, and comics. It supports importing sources through custom rules, enabling access to content from various sites without centralized control. Reader provides a clean, customizable reading interface and supports synchronization, local storage, and different viewing modes for an enhanced reading experience.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    A Palm Markup Language (PML) editor for the Palm eBook Reader.
    Downloads: 0 This Week
    Last Update:
    See Project
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