Helpful extensions for flutter developers

Dart Data Class Generator
Create dart data classes easily, fast and without writing boilerplate or running code generation, it can generate the constructor, copyWith, toJson, fromJson and etc…

Dart-import
This is one of the useful extensions, it enables you to change all Dart/Flutter imports to a relative and Organized format

Better Comments
Will help you create more human-friendly comments in your code for Alerts, Queries, TODOs and etc…

Bloc
If you are working with bloc state management this is very important to have, this extension helps us to create Bloc/Cubit folders with one click and provide some helpful code actions

Pubspec Assist
Allows you to easily add dependencies to your Dart and Flutter project’s pubspec.yaml, all without leaving your editor

Error Lens
Very helpful extentsion it shows you where you errors are and gives you the possible solution

GetX Snippets
An extension to accelerate the process of developing applications with Flutter, aimed at everyone using the Get package, this extension aims to make your development with Get easy also provider some useful snippets

Flutter Widget Snippets
A set of helpful widget snippets for day to day Flutter developments

Github Pull Request and Issues
This extension allows you to review and manage GitHub pull requests and issues in Visual Studio Code

Flutter Intl
Create a binding between your translations from .arb files and your Flutter app. It generates boilerplate code for offical Dart Intl library and add auto-complete for keys in Dart code

(source: Mohammed Naji)