Librera Reader vs MuPDF mini
Side-by-side comparison of two open source alternatives
Librera Reader
Librera Reader is a highly customizable and feature-rich application for reading e-books in PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, CBR, DOC, DOCX, formats. With its intuitive, yet powerful, interface, Librera makes ebook reading a veritable pleasure. It even features a unique auto-scrolling, hands-free Musician's mode, with controllable speed. F-Droid version is based on the latest MuPDF and support Android 4.1+. The only difference between Librera FD (F-Droid) and Librera PRO is the absence of Google Play services and Google Drive book synchronization in Librera FD. # Just a few Librera main features: * Easy document discovery by configurable criteria: * Auto-Scan (user-specified folders) * Browse folders (using an in-app file explorer) * Recent (featuring a reading-progress indicator) * Support for bookmarks, annotations, and EPUB3 tables of contents * Configurable Day and Night modes * Configurable link color (hence, footnotes and endnotes color) * Support for many popular offline dictionaries * Vertical-scroll lock * Auto- and manual centering of documents * Custom ad-hoc CSS coding * Single-page view of two-page documents * Musician's mode with configurable scroll speed * Customizable TTS reading and built-in media player * Page-wise TTS recording to MP3 or WAV * Multi-word text search * Support for archived (.zip) documents * Support for RTL languages (Thai, Hebrew, Arabic, etc.) * Import and export of settings, auto-backup of current session * Leading initials in FB2 documents * RSVP reading (à la Spritz) * Movable bookmarks, w/ a floating indicator * And a whole bunch of other features for you to check out. You can read books in your web browser with the Librera Book Reader https://librera.mobi/online-book-reader/ The best way to fully appreciate Librera Reader, however, is to use our restriction-free Librera PRO version from Google Play. If you enjoy Librera, please consider making a donation: https://www.patreon.com/librera
MuPDF mini
MuPDF Mini Viewer is a minimalist Android app that uses the MuPDF library to view PDF, XPS, CBZ, unprotected EPUB, and FB2 documents. This is a minimalist version of the MuPDF app, which focuses on reading only. It does not support editing annotations or filling out forms. The app will start with a file picker showing the contents of the external storage directory. Only files that it can open will be listed. Each document you open will start its own activity, so you can view many documents at once. Use the Overview system button to switch between the file picker and any open documents and other activities you have running. Tapping on the left and right side of the screen will flip to the previous and next pages. Tapping in the middle will bring up or hide the tool bars. A long tap will toggle highlighting of links. When the links are highlighted they are also active and tappable. You can pinch to zoom in. When zoomed in, tapping will scroll to advance the next screenful of content. In the toolbar there is a button to show the table of contents, if the document has one. In EPUB and FB2 documents, there is also a menu item to pick the font size. The scrubber at the bottom allows you to quickly jump to a given page in the document.
| Feature | Librera Reader | MuPDF mini |
|---|---|---|
| License | GPL-3.0-or-later | AGPL-3.0-or-later |
| Install sources | F-DroidGitHub | F-DroidGitHub |
| Categories | NotesEbook Reader | NotesEbook Reader |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |