NeverTooManyBooks is a free, open-source Android app built for anyone who has ever lost track of their reading list, accidentally bought a duplicate, or simply wanted a better way to manage their personal library. It solves the everyday problem of keeping a growing book and comic collection organised by letting you add titles in seconds — scan a barcode, search by ISBN, or type a title — and then automatically pulling rich metadata from more than twenty internet sources so you rarely have to fill in details by hand.Documentation Index
Fetch the complete documentation index at: https://mintlify.com/tfonteyn/NeverTooManyBooks/llms.txt
Use this file to discover all available pages before exploring further.
Key Features
- Barcode & ISBN scanning — point your camera at any book barcode and the app does the rest
- 20+ data sources — Amazon, Google Books, Open Library, ISFDB, Goodreads, BnF.fr, DNB, Douban, Bedetheque, and many more, each configurable and prioritisable
- Bookshelves — organise titles into as many named shelves as you like
- Reading progress — track what you have read, are reading, or want to read
- Calibre sync — synchronise your library with a Calibre Content Server over your local network
- Backup & restore — full JSON-based backups keep your data safe across reinstalls and device changes
- Multilingual UI — the interface ships in 20 languages including Chinese (Simplified & Traditional), French, German, Spanish, Russian, and more, with additional translations maintained on Weblate
- Tablet-optimised layouts — dedicated two-panel layouts for 7″ and 10″ tablets, with graceful scaling down to 4″ phones
Version & Compatibility
The current stable release is 7.16.1. The app requires Android 8.0 (API 26) or later and has been tested through Android 16 (API 36).Where to Get It
NeverTooManyBooks is distributed outside the Google Play Store. You can download it from:- GitHub Releases — github.com/tfonteyn/NeverTooManyBooks/releases
- IzzyOnDroid (F-Droid-compatible repository) — apt.izzysoft.de/fdroid/index/apk/com.hardbacknutter.nevertoomanybooks
The APK is signed with the following certificate so you can verify authenticity before installing.
DN:
CN=ca
SHA-256: df971ce7d58d3cdf377c32e0e2f53d6599bd7f130a50c0529c45583ddc12a008History & License
In August 2018, NeverTooManyBooks was forked from Book Catalogue 5.2.2 (© 2016 Philip Warner & Evan Leybourn). Since then it has been largely rewritten and substantially extended. The project is released under the GNU General Public License v3.0 (GPL-3.0), meaning the source code is fully auditable and freely redistributable.If you are migrating from Book Catalogue, the app includes a dedicated import path. Check the project wiki for step-by-step instructions.
Explore the Documentation
Installation
System requirements, download links, and step-by-step installation instructions for your Android device.
Quickstart
Add your first book and explore your new library in under five minutes.
Search Engines
Configure and prioritise the 20+ data sources used to fetch book metadata automatically.
Calibre Sync
Connect NeverTooManyBooks to a Calibre Content Server for two-way library synchronisation.