v4.0.3
freezed
Code generation for immutable classes that has a simple syntax/API without compromising on the features.
4.5KLikes 3M30-day downloads160Pub points
AndroidiOSmacOSWindowsLinux
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Code Generator & Serialization (JSON)
Explore Code Generator & Serialization (JSON) Flutter packages and compare platform support and community metrics.
FLUTTER ECOSYSTEM
Curated for Flutter developers
102Flutter packages
Flutter packages
102 packages102 packages
v6.15.2
json_serializable
Automatically generate code for converting to and from JSON by annotating Dart classes.
4KLikes 4.4M30-day downloads160Pub points
AndroidiOSmacOSWindowsLinux
v5.15.0
flutter_gen
The Flutter code generator for your assets, fonts, colors, … — Get rid of all String-based APIs.
1.8KLikes 142K30-day downloads160Pub points
macOSWindowsLinux
v4.12.0
json_annotation
Classes and helper functions that support JSON code generation via the `json_serializable` package.
1.3KLikes 15.8M30-day downloads150Pub points
AndroidiOSWebmacOSWindowsLinux
v30.0.2
pigeon
Code generator tool to make communication between Flutter and the host platform type-safe and easier.
1.3KLikes 870K30-day downloads160Pub points
macOSWindowsLinux
v3.1.0
freezed_annotation
Annotations for the freezed code-generator. This package does nothing without freezed too.
564Likes 4.8M30-day downloads150Pub points
AndroidiOSWebmacOSWindowsLinux
v4.10.0
dart_mappable
Improved json serialization and data classes with full support for generics, inheritance, customization and more.
470Likes 510K30-day downloads160Pub points
AndroidiOSWebmacOSWindowsLinux
v4.0.10
riverpod_generator
A code generator for Riverpod. This both simplifies the syntax empowers it, such as allowing stateful hot-reload.
438Likes 1.2M30-day downloads130Pub points
AndroidiOSmacOSWindowsLinux
v2.0.1
hive_generator
Extension for Hive. Automatically generates TypeAdapters to store any class.
426Likes 176K30-day downloads100Pub points
macOSWindowsLinux
v23.0.0
ffigen
Generator for FFI bindings, using LibClang to parse C, Objective-C, and Swift files.
340Likes 1.1M30-day downloads160Pub points
AndroidiOSmacOSWindowsLinux
v5.15.0
flutter_gen_runner
The Flutter code generator for your assets, fonts, colors, … — Get rid of all String-based APIs.
329Likes 678K30-day downloads150Pub points
AndroidiOSmacOSWindowsLinux
v2.8.0
mobx_codegen
Code generator for MobX that adds support for annotating your code with @observable, @computed, @action and also creating Store classes.
301Likes 92.4K30-day downloads150Pub points
AndroidiOSmacOSWindowsLinux
v2.2.20
dart_json_mapper
This package allows programmers to annotate Dart objects in order to serialize / deserialize them from / to JSON.
279Likes 2K30-day downloads140Pub points
AndroidiOSWebmacOSWindowsLinux
v18.0.0
copy_with_extension_gen
Automatically generating `copyWith` extensions code for classes with `@CopyWith()` annotation.
220Likes 152K30-day downloads160Pub points
AndroidiOSmacOSWindowsLinux
v10.3.3
retrofit_generator
retrofit generator is an dio client generator using source_gen and inspired by Chopper and Retrofit.
201Likes 600K30-day downloads160Pub points
AndroidiOSmacOSWindowsLinux
v4.3.1
source_gen
Source code generation builders and utilities for the Dart build system
191Likes 7.5M30-day downloads150Pub points
AndroidiOSmacOSWindowsLinux
v4.0.8
riverpod_annotation
A package exposing annotations for riverpod_generator
182Likes 1.5M30-day downloads130Pub points
AndroidiOSWebmacOSWindowsLinux
v3.0.2
graphql_codegen
Simple, opinionated, codegen library for GraphQL. It allows you to generate serializers and client helpers to easily call and parse your data.
152Likes 163K30-day downloads160Pub points
AndroidiOSWebmacOSWindowsLinux
v8.13.0
built_value_generator
Value types with builders, Dart classes as enums, and serialization. This library is the dev dependency.
148Likes 435K30-day downloads160Pub points
AndroidiOSmacOSWindowsLinux
v2.18.0
auto_mappr
Code generation for mapping between different objects with ease.
142Likes 10.4K30-day downloads150Pub points
AndroidiOSmacOSWindowsLinux
v3.1.3
injectable_generator
Injectable is a convenient code generator for get_it. Inspired by Angular DI, Guice DI and inject.dart.
137Likes 576K30-day downloads150Pub points
macOSWindowsLinux
v1.0.1
jnigen
A Dart bindings generator for Java and Kotlin that uses JNI under the hood to interop with Java virtual machine.
135Likes 56K30-day downloads160Pub points
AndroidiOSmacOSWindowsLinux
v1.2.0
flutter_asset_generator
Generates the resource file by scanning assets defined in the pubspec.yaml, imitation R file short name.
112Likes 8.2K30-day downloads130Pub points
AndroidiOSmacOSWindowsLinux
v25.1.0
protoc_plugin
A protobuf protoc compiler plugin used to generate Dart code.
97Likes 300K30-day downloads150Pub points
AndroidiOSmacOSWindowsLinux
How do you choose a Flutter package for Code Generator & Serialization (JSON)?
Check the required features and target platforms first, then compare versions, downloads, and Pub points. Open package details to consult the original documentation and test compatibility in your project.
Flutter is an open-source framework for building beautiful, natively compiled, multi-platform applications from a single codebase.
Where can you verify package information?
Check versions and package metadata on pub.dev, and source code, licensing, and maintenance in the project’s GitHub repository. The official Dart documentation explains that package metadata lives in pubspec.yaml.
pub.dev · GitHub · Dart — The pubspec file
All of this metadata goes in the package's pubspec