Stock e-readers go to sleep after 10 minutes. If you are reading a 500MB PDF scanned in 1998, waking the device can cause the rendering engine to stutter. Keep Alive prevents power saving while a specific document is open.
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. The "Mount Rushmore" of KOReader Plugins (Essentials) These four plugins are non-negotiable. If you install nothing else, install these. 1. Auto-Warmth & Auto-Dim (The Eye-Saver) Best for: Night reading and circadian rhythm sync. best koreader plugins top
Enable them today. Your reading workflow will never be the same. Do you have a favorite plugin that didn't make the list? Join the discussion on the MobileRead forums or KOReader’s GitHub discussion page. Stock e-readers go to sleep after 10 minutes
If you use Calibre to manage your books, you hate manually entering series info and tags. This plugin reads the metadata.calibre file from your Calibre library folder and writes it into KOReader’s internal database. Unlike Android apps, KOReader plugins are lightweight
Most people don't know KOReader has a fully functional text editor. The Keyboard plugin is misnamed; it is actually a document editor. It supports Markdown, syntax highlighting, and word count.
It solves the only remaining pain point of open source reading. No cloud subscription. No proprietary server. Just a text file. 4. CoverImage (The Visual Fixer) Best for: OCD library managers.
While KOReader has manual color temperature control (cool to warm/orange), the plugin suite Auto-Warmth automates it. You set your latitude/longitude (or simply a time range), and the device slowly shifts from cold blue light in the morning to deep orange/amber at sunset.