3/5 for search results — the intent is helpful, but the execution is often sloppy. Look for guides dated within the last 1–2 years (KOReader plugins change with each release). When in doubt, the plugin manager inside KOReader (under Tools → More tools → Plugins) is your most reliable “top” list.
KOReader is highly customizable, and while it comes with many powerful built-in features, its true potential is unlocked through third-party plugins and user patches. Top Community Plugins
These popular add-ons enhance how you sync data, track reading habits, and manage your library.
KOReader-Obsidian-Sync: Automatically exports your highlights and notes directly into a structured Obsidian book note over Wi-Fi.
ReadMastery: Adds gamification to your reading with XP, levels, daily streaks, and achievements.
BookFusion Sync: A full-featured plugin that provides two-way sync for books, highlights, and reading progress across mobile, web, and e-ink devices. best koreader plugins top
Anki Sync (anki.koplugin): Generates flashcards for your Anki decks directly from words you look up in the KOReader dictionary.
Project Title: A popular UI enhancement that displays book titles and metadata in the file browser for a cleaner look.
LocalSend: Acts like "AirDrop" for your e-reader, allowing you to wirelessly send books from your phone or PC directly to KOReader. Essential Built-in Plugins
These often come pre-installed or are part of the official repository and just need to be enabled in the Top Menu.
KOReader’s modular nature allows you to significantly expand its capabilities beyond its built-in features. While some plugins come pre-installed, others are community-driven projects that you can manually install into the /koreader/plugins/ folder on your device. Essential Productivity & Workflow Plugins Calibre Wireless Connection : Enables direct, cable-free book transfers from your library to your e-reader. KOReader Sync 3/5 for search results — the intent is
: Synchronizes reading progress across multiple devices, allowing you to switch between a tablet and an e-reader without losing your place. Vocabulary Builder
: Tracks the words you look up in the dictionary and uses a spaced repetition system to help you memorize new vocabulary.
: A "read-it-later" service integration that lets you download articles saved via for offline reading. News Downloader
: Automatically fetches RSS and Atom feeds, converting them into HTML files for distraction-free reading. koreader.rocks Top UI & Customization Plugins KOReader User Guide
Before diving into the list, a quick primer. In KOReader, plugins are found in the Top Menu (gear icon) > Plugins. Most are disabled by default to keep the system lean. To activate them, simply tap the checkbox. Some require a device restart; others work instantly. Why Top Tier: Provides finer control than OEM firmware
Important: Unlike Android apps, KOReader plugins are lightweight. They consume almost no battery because they only wake up when you trigger them. You can safely enable everything on this list without slowing down your page turns.
Automated RSS and News
While Wallabag is for specific articles you choose, NewsDownloader is for periodicals you love. It allows you to fetch content from RSS/Atom feeds automatically.
The TAPAS (Text Analysis and Processing for All Study) plugin offers advanced text analysis features. It can analyze texts for various metrics, including reading ease, provide summaries, and even offer suggestions for further study. This plugin can significantly enhance the study experience for students and researchers.
For the uninitiated, KOReader is an open-source ebook reader application available for Kindle, Kobo, PocketBook, Android, and remarkable devices. While the stock firmware on these devices is often restrictive and "walled garden" oriented, KOReader acts as a universal key. It strips away the limitations imposed by hardware manufacturers, offering a unified reading experience across devices.
But KOReader’s true superpower lies in its plugin architecture. By default, KOReader is lean and fast. However, by installing specific plugins, you can tailor the device to your specific workflow—whether you are a researcher, a language learner, a news junkie, or a fan of fanfiction.
If you have just installed KOReader and are staring at the menu wondering where to start, this guide covers the essential plugins that define the "KOReader experience."