KOReader

	KOReader(koreader.rocks)
	717 points by Cider9986 1 day ago \| 229 comments
	tl;dr: KOReader is an open-source document viewer designed for E Ink devices, supporting a wide range of formats including EPUB, PDF, DjVu, CBZ, MOBI, and various text and office document types. It runs on Kindle, Kobo, PocketBook, Android, and desktop Linux.
	HN Discussion: ↑Enthusiastic praise for KOReader as transformative software that improves e-reading fundamentally ~The UI/UX is unintuitive and painful, making it not worth switching from stock readers ~KOReader is great once configured, often requiring plugins like Zen UI to be usable ↓Lack of support for specific features (e.g., Japanese vertical layout) prevents adoption ↑KOReader exemplifies the superiority of free/open-source software over proprietary alternatives