OPDSy

Read your ebooks, comics and manga in one private app. OPDSy opens EPUB, PDF, MOBI, AZW3, FB2, CBZ and CBT files and plays audiobooks, with no account, no ads and no tracking. It works offline, too. Add any folder on your phone as a library, browse a WebDAV share, or connect a self-hosted OPDS server such as Komga, Kavita, Calibre-Web or Ubooquity. New to OPDS? It's the open standard that self-hosted book and comic libraries use to share their catalogues. No server? Add the free Project Gutenberg library in one tap and start reading. Works with your whole library: • Ebooks: EPUB, MOBI, AZW3, FB2 and PDF • Comics and manga: CBZ and CBT from any library, plus CBR streamed page by page from servers that support OPDS-PSE, such as Komga and Ubooquity • Audiobooks: M4B, M4A, MP3, AAC, OGG, Opus, FLAC and WAV • Also: Markdown with Mermaid.js diagrams • Local: add any folder on your device as a library, or open a file straight from another app • WebDAV: browse, search, download and read from any WebDAV server • OPDS servers: Komga, Kavita, Ubooquity, Calibre-Web, BookOrbit, Grimmory, LazyLibrarian and any OPDS 1.2 or 2.0 catalogue Key features: • One unified library across every source, with per-source colour badges • Search every library at once, then filter to books, comics or folders • Each source loads independently, so one slow or offline server never breaks the rest • Comic and manga reader: paged or vertical scroll (webtoon), left-to-right or right-to-left, fit to screen or fit to width • Dual-page spreads in landscape; double-tap or pinch to zoom into artwork • Smart page prefetching, so the next page is ready before you swipe • Ebook reader: adjustable fonts, line spacing and margins, with light, sepia, dark and OLED black themes • Load your own font, including dyslexia-friendly typefaces • Built-in PDF reader with pinch and double-tap zoom • Read aloud: text-to-speech for any ebook, flowing on between chapters, with speed and pitch control, offline or online voices, and headphone and car controls • Audiobook player with chapters, sleep timer, playback speed and lock-screen controls • Offline dictionary: tap Define on any word for its meaning, examples and synonyms without leaving the page • Jump to any page: drag the slider, type a page number, or flick through page thumbnails in comics and PDFs; books list every chapter • Continue Reading and Recently Opened keep your place across every source • Mark books read or unread; folders show a READ badge once everything inside is finished • Highlight passages in five colours, add notes and bookmark any book, PDF or comic, all in one list • Favourite books and folders for one-tap access from Home • Download books, comics and audiobooks for offline reading and listening, with downloads that resume automatically • Made for e-ink readers such as Onyx Boox: a high-contrast black-on-white theme, animations off to stop ghosting, and volume keys that turn the page • Available in 51 languages and regional variants, including right-to-left Arabic and Urdu Private by design: • No accounts, no ads, no third-party analytics and no tracking of any kind • Connects only to the servers you choose • Server passwords stored securely in your device keychain • Optional end-to-end encrypted sync of progress, favourites, highlights and servers through your own Google Drive • Optionally publish your reading position to Komga, so its web UI shows the same place • Dictionary lookups happen entirely on your device • Files on your device stay on your device Credits: content in screenshots is used under CC-BY 4.0, public domain or CC0 (Pepper & Carrot by David Revoy; Golden Age comics via the Internet Archive; novels from Standard Ebooks). OPDSy is not affiliated with any OPDS server project; all trademarks belong to their owners.