Data & backend in Flutter using OpenlibExtended

An Open source app to download and read books from shadow library (Anna’s Archive).

CategoryBackend/Data
Stars★ 409
Last update2026-03-04
PriorityLow

OpenlibExtended is an open-source backend & data library for Flutter mobile app development, with 409★ on GitHub and last updated on 2026-03-04. This guide covers what OpenlibExtended does, why it matters in 2026, how to add it to your project, when to reach for it, and how it compares to the alternatives — plus a quick FAQ.

What is OpenlibExtended?

An Open source app to download and read books from shadow library (Anna’s Archive). It focuses on talking to APIs, databases, and persistence layers. The project lives at warreth/OpenlibExtended and is maintained by warreth.

Why OpenlibExtended is worth knowing in 2026

OpenlibExtended carries 409 GitHub stars, 15 forks, 20 open issues. It has been around since 2026, and is actively maintained. For a Backend/Data option, that combination of adoption and upkeep usually means a healthy community, production usage, and plenty of examples to learn from — the things that make a dependency safe to build on.

Installing OpenlibExtended

Add the package to your pubspec.yaml:

dependencies:
  OpenlibExtended: ^latest

Then fetch it and import it in your Dart code:

flutter pub get
import 'package:openlibextended/openlibextended.dart';

Check the package’s example/ directory and its GitHub repo for the exact API — OpenlibExtended is versioned there with full docs so you always integrate against the current release.

When should you use OpenlibExtended?

Reach for OpenlibExtended when:

  • you’re calling REST/GraphQL APIs from a Flutter app
  • you need local storage, caching, or offline sync
  • you want typed, testable data access

It’s especially relevant if your project touches annas-archive, archiving, books, ebook, ebook-downloader, ereader.

OpenlibExtended vs. the alternatives

If you’re weighing options in the Backend/Data space, these are the other projects developers most often compare OpenlibExtended against:

There’s no single winner — the right pick depends on your app’s size, your team’s familiarity, and your performance budget. Browse the full Backend/Data collection to compare them side by side.

Frequently asked questions

Is OpenlibExtended free to use?

Yes. OpenlibExtended is open source and free to use in your Flutter projects. You can view the source, report issues, and contribute on GitHub.

Does OpenlibExtended work on both iOS and Android?

OpenlibExtended is built for Flutter, so it targets iOS and Android from a single codebase, and typically web and desktop too depending on the project’s platform support.

As of 2026, OpenlibExtended has around 409 stars and 15 forks on GitHub, which puts it among the more widely used options in the Backend/Data space.

What are good alternatives to OpenlibExtended?

Popular alternatives in the Backend/Data category include gopeed, mmkv, proxypin. The best choice depends on your app’s size, team, and performance needs.


Part of FlutterCook — 500 hands-on guides to the best open-source Flutter libraries, UI kits, and apps. Explore the live GitHub trends or browse YouTube guides.