Add AI to your Flutter app with langchain_dart

Build LLM-powered Dart/Flutter applications.

CategoryAI/ML
Stars★ 685
Last update2026-06-29
PriorityMedium

langchain_dart is an open-source AI/ML toolkit for Flutter mobile app development, with 685★ on GitHub and last updated on 2026-06-29. This guide covers what langchain_dart 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 langchain_dart?

Build LLM-powered Dart/Flutter applications. It focuses on bringing on-device or cloud AI features into a Flutter app. The project lives at davidmigloz/langchain_dart and is maintained by davidmigloz.

Why langchain_dart is worth knowing in 2026

langchain_dart carries 685 GitHub stars, 155 forks, 20 open issues. It has been around since 2023, and is actively maintained (updated within the last month). For a AI/ML 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 langchain_dart

Add the package to your pubspec.yaml:

dependencies:
  langchain_dart: ^latest

Then fetch it and import it in your Dart code:

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

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

When should you use langchain_dart?

Reach for langchain_dart when:

  • you’re adding a chatbot, assistant, or generative feature
  • you need on-device inference for privacy or offline use
  • you’re wiring an LLM or ML model into a mobile app

It’s especially relevant if your project touches ai, dart, flutter, generative-ai, llms, nlp.

langchain_dart vs. the alternatives

If you’re weighing options in the AI/ML space, these are the other projects developers most often compare langchain_dart 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 AI/ML collection to compare them side by side.

Frequently asked questions

Is langchain_dart free to use?

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

Does langchain_dart work on both iOS and Android?

langchain_dart 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, langchain_dart has around 685 stars and 155 forks on GitHub, which puts it among the more widely used options in the AI/ML space.

What are good alternatives to langchain_dart?

Popular alternatives in the AI/ML category include appflowy, appwrite, some-many-books. The best choice depends on your app’s size, team, and performance needs.

How do I install langchain_dart?

Add langchain_dart to the dependencies section of your pubspec.yaml and run flutter pub get. Full versions and API docs are on pub.dev.

Resources & links

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.

#ai#dart#flutter#generative-ai#llms#nlp