Flutter Bluetooth
Five libraries bring Bluetooth Low Energy to Flutter. SimpleBLE runs on Android, iOS, macOS, Windows, and Linux from one package, as a central or a peripheral, and the team that builds it supports your app.
Platforms, roles, and licensing decide which library fits a commercial Flutter app. This is where each one stands.
| Library | Platforms | Peripheral role | Beyond Flutter | License |
|---|---|---|---|---|
| SimpleBLEsimplefltble | Android, iOS, macOS, Windows, Linux | Every platform | C++, Python, C#, Rust, and more | Source-available (BUSL 1.1); one commercial license per company |
| flutter_blue_plusflutter_blue_plus | Android, iOS, macOS, Linux, Web. Windows through flutter_blue_plus_winrt | No | Flutter only | Free for personal, nonprofit, and education use; commercial license for for-profit use |
| universal_bleuniversal_ble | Android, iOS, macOS, Windows, Linux, Web | Android, iOS, macOS, Windows | Flutter only | BSD-3-Clause |
| bluetooth_low_energybluetooth_low_energy | Android, iOS, macOS, Windows, Linux | Android, iOS, macOS, Windows | Flutter only | MIT |
| flutter_reactive_bleflutter_reactive_ble | Android, iOS | No | Flutter only | BSD-3-Clause |
SimpleBLE is a Bluetooth Low Energy library for Windows, macOS, Linux, iOS, and Android. Its Flutter package, SimpleFltBLE, scans and connects as a central and hosts GATT services as a peripheral, with futures and streams. Bluetooth work never blocks your UI. The same library runs in C++, Python, C#, Rust, and other languages, so your app and your test tools share one Bluetooth foundation, and commercial customers work directly with the engineers who maintain it.
flutter_blue_plus is a central-role plugin for Android, iOS, macOS, Linux, and the web. Windows support comes from flutter_blue_plus_winrt, a separate package. Its license is free for personal, nonprofit, and educational use; for-profit organizations and individuals need a commercial license. A company that is licensing a Flutter BLE library can license SimpleBLE instead and gain Windows, the peripheral role, and every other SimpleBLE language under one agreement.
universal_ble, from Navideck, covers Android, iOS, macOS, Windows, Linux, and the web, with a peripheral mode on Android, iOS, macOS, and Windows. It is BSD-licensed and available for Flutter only. SimpleBLE runs the same library in your desktop tools and test scripts outside Flutter.
bluetooth_low_energy is an MIT-licensed plugin with central and peripheral managers. Its peripheral role covers Android, iOS, macOS, and Windows, and on Linux it works as a central only.
flutter_reactive_ble is published by Philips Hue and built around reactive streams. It supports Android and iOS in the central role. A Flutter app that also ships on desktop, or that needs to advertise, needs another library for that part.
SimpleFltBLE works with futures and streams. Add it with flutter pub add simplefltble, and this is the code for each step.
import 'package:simplefltble/simplefltble.dart';
Future<void> scan() async {
final adapter = (await Adapter.getAdapters()).first;
adapter.onScanFound.listen((peripheral) {
print('${peripheral.identifier} ${peripheral.address}');
});
await adapter.scanFor(const Duration(seconds: 5));
}Android, iOS, macOS, Windows, and Linux from pub.dev. Nothing to compile.
Scan and connect, or advertise and serve GATT, on every platform.
Bluetooth never blocks the UI isolate. Scans and reads never cost a frame.
Your Flutter app, Python test scripts, and C++ tools share the same Bluetooth library.
Plug in a Dongl for a dedicated radio on Windows, macOS, or Linux. Same code.
Commercial customers work directly with the team that builds SimpleBLE.
Evaluation needs no license. For commercial use, one agreement covers your whole company, with no per-seat, per-device, or royalty fees.
SimpleBLE, universal_ble, and bluetooth_low_energy support Windows directly. flutter_blue_plus supports Windows through a separate package, flutter_blue_plus_winrt, and flutter_reactive_ble supports Android and iOS.
SimpleBLE, universal_ble, and bluetooth_low_energy support Windows directly. flutter_blue_plus supports Windows through a separate package, flutter_blue_plus_winrt, and flutter_reactive_ble supports Android and iOS.
No. Its license is free for personal, nonprofit, and educational use, and for-profit organizations and individuals need a commercial license. SimpleBLE is also licensed for commercial use, and one agreement covers your whole company, Windows, the peripheral role, and every SimpleBLE language.
No. Its license is free for personal, nonprofit, and educational use, and for-profit organizations and individuals need a commercial license. SimpleBLE is also licensed for commercial use, and one agreement covers your whole company, Windows, the peripheral role, and every SimpleBLE language.
Yes. SimpleBLE hosts GATT services and advertises on Android, iOS, macOS, Windows, and Linux. universal_ble and bluetooth_low_energy offer a peripheral role on Android, iOS, macOS, and Windows. flutter_blue_plus and flutter_reactive_ble work in the central role.
Yes. SimpleBLE hosts GATT services and advertises on Android, iOS, macOS, Windows, and Linux. universal_ble and bluetooth_low_energy offer a peripheral role on Android, iOS, macOS, and Windows. flutter_blue_plus and flutter_reactive_ble work in the central role.
Add simplefltble from pub.dev, then move scanning, connections, and GATT calls one flow at a time. Both libraries use futures and streams, so the shape of your Bluetooth code stays the same.
Add simplefltble from pub.dev, then move scanning, connections, and GATT calls one flow at a time. Both libraries use futures and streams, so the shape of your Bluetooth code stays the same.
Yes. On Windows, macOS, and Linux, SimpleFltBLE drives a Dongl USB adapter with the same code it uses for the computer's built-in Bluetooth.
Yes. On Windows, macOS, and Linux, SimpleFltBLE drives a Dongl USB adapter with the same code it uses for the computer's built-in Bluetooth.
SimpleBLE is source-available under the Business Source License 1.1 and free for non-commercial use. Evaluation needs no license. Commercial use needs a license, and one agreement covers your whole company, with no per-seat, per-device, or royalty fees.
SimpleBLE is source-available under the Business Source License 1.1 and free for non-commercial use. Evaluation needs no license. Commercial use needs a license, and one agreement covers your whole company, with no per-seat, per-device, or royalty fees.