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Librera Reader

librera.mobi

Free plan Open source WebmacOSiOSAndroidBrowser extension
Visit librera.mobi
Spec score 8.9 #2 of 27 in Ebook Reader Software

What it is

Librera Reader is an ebook and document reader for Android, with a browser-based reader and a macOS beta also listed. It opens formats including PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, and CBR. Readers can locate files by scanning folders, browsing with the in-app file explorer, or returning to recent items. Reading tools include bookmarks, annotations, text search, EPUB3 tables of contents, and adjustable Day and Night modes. Progress and bookmarks can sync between Android devices through Google Drive. The app also offers configurable text-to-speech with a built-in media player, online catalogs, cloud sources, and online and offline dictionaries. Access can be restricted with a password or the device’s fingerprint authentication. The free plan is ad-supported; Librera PRO removes ads and costs 5.99 USD once. The maker lists Kyiv, Ukraine as its headquarters.

Spec sheet

What it does
Librera is a customizable Android reader for ebooks and documents in formats including PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ and CBR.Read 15 Oct 2026 · librera.mobi
Purpose
Librera Reader is an ebook and document reader for Android devices.Read 8 Oct 2026 · librera.mobi
Privacy
The free app’s privacy policy says it may use Google Play Services, AdMob, and Firebase Analytics, and may collect log data when errors occur.Read 8 Oct 2026 · librera.mobi
Support
The maker lists [email protected] as the support contact.Read 8 Oct 2026 · librera.mobi
Headquarters
Kyiv, UkraineRead 28 Sep 2026 · librera.mobi
Android Auto
The maker says Librera appears as a media app in Android Auto and can browse recent books and resume saved positions.Read 8 Oct 2026 · librera.mobi
API and SDK documentation
The opened developer materials describe building the Android application but do not present a public API or SDK reference.Read 15 Oct 2026 · github.com
Archive and language support
The reader opens books inside ZIP archives and supports right-to-left languages including Thai, Hebrew and Arabic.Read 15 Oct 2026 · librera.mobi
Audio playback
Librera plays common audio formats such as MP3, MP4, WAV, OGG, M4A and FLAC alongside ebook reading.Read 15 Oct 2026 · librera.mobi
Bookmarks and annotations
The reader supports bookmarks, annotations and EPUB3 tables of contents.Read 15 Oct 2026 · librera.mobi
Browser reader
Librera provides an online browser reader for EPUB, PDF, FB2 and CBZ files.Read 15 Oct 2026 · librera.mobi
Catalog integration
The app supports cloud sources and online catalogs, including OPDS catalogs listed in the project documentation.Read 15 Oct 2026 · github.com
Catalogs and dictionaries
The app supports cloud sources, online catalogs, and online and offline dictionaries.Read 8 Oct 2026 · librera.mobi
Cloud integration
The Android edition can synchronize reading progress and bookmarks between Android devices through Google Drive.Read 15 Oct 2026 · librera.mobi
Cloud sync
Reading progress and bookmarks can sync across Android devices via Google Drive.Read 8 Oct 2026 · librera.mobi
Company identity
Google Play identifies the developer as Ivan Ivanenko and lists a Kyiv, Ukraine address.Read 15 Oct 2026 · play.google.com
Developer build documentation
The README documents Android NDK 20 or newer, required native build libraries, Gradle build commands and Firebase setup for Google-enabled builds.Read 15 Oct 2026 · github.com
Device protection
Librera can restrict access to the app using a password or fingerprint authentication configured on the device.Read 8 Oct 2026 · librera.mobi
Discovery
Readers can find documents through folder scanning, an in-app file explorer, and a recent-items list.Read 8 Oct 2026 · librera.mobi
Display controls
Readers can configure day/night modes, link colors, vertical-scroll locking, document centering and single-page display for two-page documents.Read 15 Oct 2026 · librera.mobi
F-Droid variant
The F-Droid edition removes Google Play services and Google Drive synchronization compared with the PRO edition.Read 15 Oct 2026 · f-droid.org
Format support
The project README additionally lists EPUB3, DOC, DOCX and OPDS catalogs among supported formats.Read 15 Oct 2026 · github.com
Formats
The app reads PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, and CBR files.Read 8 Oct 2026 · librera.mobi
Library discovery
Users can scan selected folders, browse with an in-app file explorer and view recently opened books with reading progress.Read 15 Oct 2026 · librera.mobi
Limit: interface complexity
A Reddit user says the interface takes time to learn compared with Moon Reader, despite being feature-rich.Read 15 Oct 2026 · reddit.com
Limit: missing reading statistics
The same independent review says Librera lacks the reading statistics offered by some competing readers.Read 15 Oct 2026 · libredroid.com
Limit: permissions concern
AppBrain reproduces complaints that the PRO app requires broad file access before users can use it.Read 15 Oct 2026 · appbrain.com
Limit: update stability
Chrome Stats summarizes complaints about crashes during Calibre-server downloads or app switching and performance regressions after updates.Read 15 Oct 2026 · chrome-stats.com
Limit: very large libraries
An independent 2026 review reports that grid view becomes slow above roughly 5,000 files and recommends list view or folder division.Read 15 Oct 2026 · libredroid.com
macOS availability
The maker’s updates page describes Librera for macOS as a beta and lists support for PDF, EPUB, FB2, CBZ, and CBR.Read 8 Oct 2026 · librera.mobi
Open-source licence
The source repository is licensed under GNU GPL version 3 or any later version.Read 15 Oct 2026 · github.com
Owner profile
SignalHire lists Ivan Ivanenko as owner of Librera Reader in Ukraine since February 2017.Read 15 Oct 2026 · signalhire.com
Praise: configurability
Chrome Stats reviewers frequently praise the extensive controls for dark mode, zoom, scrolling and orientation.Read 15 Oct 2026 · chrome-stats.com
Praise: format coverage
Chrome Stats reviewers repeatedly praise the broad file-type support and smooth handling of EPUB, PDF and other formats.Read 15 Oct 2026 · chrome-stats.com
Praise: large libraries
A Reddit user reports that the F-Droid build handled about 800 books without lag and became solid after initial configuration.Read 15 Oct 2026 · reddit.com
Privacy disclosure
Google Play’s free listing says the app may share location and personal information with third parties, while the PRO listing says no data is shared or collected.Read 15 Oct 2026 · play.google.com
Project status
The GitHub repository states that development and support were frozen for an unpredictable period because of the war in Ukraine, while its release table records version 9.5.7 on September 2, 2026.Read 15 Oct 2026 · github.com
Rating on Apple App Store
Apple says the iPhone app has not received enough ratings or reviews to display an overview.Read 15 Oct 2026 · apps.apple.com
Rating on Chrome Stats
3.91 out of 5 from 135,356 ratingsRead 15 Oct 2026 · chrome-stats.com
Rating on Chrome Web Store
4.3 out of 5 from 7 ratingsRead 15 Oct 2026 · chromewebstore.google.com
Rating on Google Play
4.1 out of 5 from 137K reviewsRead 15 Oct 2026 · play.google.com
Rating on Google Play PRO
4.6 out of 5 from 5.16K reviewsRead 15 Oct 2026 · play.google.com
Reading modes
The feature set includes configurable auto-scrolling Musician’s mode and RSVP speed reading.Read 15 Oct 2026 · f-droid.org
Reading tools
The app supports bookmarks, annotations, EPUB3 tables of contents, text search, and configurable Day and Night modes.Read 8 Oct 2026 · librera.mobi
Search and translation
Selected text can be copied, searched within the document or online, shared and translated through configured dictionaries or translators.Read 15 Oct 2026 · librera.mobi
Security feature
Users can protect the entire app and its documents with a password or device fingerprint authentication.Read 15 Oct 2026 · librera.mobi
Speech
Librera offers customizable text-to-speech reading and a built-in media player.Read 8 Oct 2026 · librera.mobi
System requirement
The current F-Droid build requires Android 7.0 or newer, while older project releases supported earlier Android versions.Read 15 Oct 2026 · f-droid.org
Text customization
Librera permits custom CSS, text reflow, adjustable fonts and backgrounds, and configurable volume-key behavior.Read 15 Oct 2026 · librera.mobi
Text to speech
The app can pronounce selections or read entire books aloud through an installed text-to-speech engine.Read 15 Oct 2026 · librera.mobi

Plans and prices

Free Free Ad-supported reader Read 8 Oct 2026 · librera.mobi
Free Librera Reader Free Ad-supported Android reader · broad ebook/document format support Read 15 Oct 2026 · librera.mobi
Librera PRO $5.99, paid once Ad-free reader Read 8 Oct 2026 · play.google.com
Librera PRO $5.99, paid once Ad-free Android reader · expanded reading features Read 15 Oct 2026 · play.google.com

Every Librera Reader plan and price →

Strong points and limits

Strong points

  • Reads a wide range of ebook and document formats.
  • Supports bookmarks, annotations, and text search.
  • Syncs reading progress and bookmarks across Android devices.
  • Includes configurable text-to-speech and a built-in media player.
  • Offers online and offline dictionaries.

Limits

  • Free plan is ad-supported.
  • The macOS version is a beta.
  • Android sync is via Google Drive.

Who it suits

Librera suits readers who use multiple ebook and document formats and want tools such as annotations, dictionaries, or text-to-speech. Its Android app, browser reader, and macOS beta offer different ways to read, though the macOS version is identified as a beta.

Verdict

Librera Reader combines broad file support with annotation, search, and speech tools. The free plan includes ads, while the 5.99 USD one-time PRO option removes them; macOS availability is still labeled beta.

Where Specifiction places it

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