EPUB Reader & Viewer: Open .epub Files EN

A free EPUB reader and viewer that lives entirely inside your browser: open .epub files and .epub links and read them right away, offline and private.

Open any .epub file — drag it onto the reader, pick it from disk, or just click an .epub link on the web — and read it with a clean two-page or continuous-scroll layout. Your books are stored in the browser's own database on your computer. There is no account, no upload, no ads and no tracking.

FREE
• Library with covers, authors and reading progress, and your current book one click away
• Highlights in four colours and notes, right where you select the text
• Table of contents, progress slider, "time left" estimate
• Two layouts: pages (like a book) or continuous scroll
• Font size, font family, line height, margins, justification, hyphenation
• Light, sepia and dark themes (dark mode also recolours the book text)
• Full-text search inside the current book, with highlighted results
• Remembers where you stopped in every book
• Aa button for size, theme, font, spacing and layout, with the page visible while you change them
• Keyboard shortcuts for everything (arrows / space for pages, t for contents, / for search, a for display, s for settings)
• Handles very large books: tested with a 1,200-chapter EPUB and 4000×3000 pixel images
• Works completely offline

PRO (one-time purchase, no subscription)
• Sync across your computers: your place in every book, your highlights, notes and settings follow you through your browser's own sync (your Microsoft account in Edge). No account with us, no server of ours.
• Export highlights and notes to Markdown (Notion, Obsidian, any notes app)
• Read aloud that follows along: the word being spoken is highlighted (or the sentence, with voices that do not report words), and the page turns by itself; speed, volume and voice right in the read-aloud bar
• Reading statistics per book: total time, sessions, pages turned, daily history

OPENING .EPUB LINKS
By default the browser downloads .epub links. If you allow the optional "website access" permission (a single click in Settings or when you first open a link), EPUB Reader opens the book directly instead of saving a file. You can also right-click any link and choose "Open link in EPUB Reader". Both are optional — the reader works fully without them.

PRIVACY
Everything runs in the extension page. Books, positions, highlights and statistics are stored in IndexedDB in your browser profile. The extension makes no network requests of its own. The only exceptions are things you start yourself: Pro sync, which hands your reading positions, highlights, notes and settings (never the books) to your browser's own sync storage, so they travel with your browser account like your bookmarks do; fetching an .epub link you clicked, the Pro checkout page, which is Lemon Squeezy's own site (the extension only sends the license key you paste to Lemon Squeezy's license API to check that it is valid), and, if you choose an online voice for read-aloud, the browser sends that text to its speech service to synthesise it. Local voices stay local.

Built on the open-source foliate-js rendering engine (MIT).