json to dart json Dart:convert Encoders and decoders for converting between different data representations, including JSON and UTF-8. Dart:io I/O for programs that can use the Dart VM, including Flutter apps, servers, and command-line scripts. Dart:html DOM and other APIs for browser-based apps. We now recommend using package:web over Dart:html
beauty json API Dash is a beautiful open-source cross-platform API Client built using Flutter which can help you easily createcustomize your API requests, visually inspect responses and generate API integration code
format json Dataset-JSON is based on the JSON standard that is simple to implement, very stable, and widely supported. It is also designed to address the limitations of legacy formats and is extensible to support new metadata and new use cases