quicktype helps you build better apps faster by generating types from data. It infers types from JSON samples, then generates strongly typed models and serializers for working with that data in Swift, TypeScript, Go, C#, Java, C++, and more. Available in your browser, CLI, Xcode, and VS Code.
It can also generate code from JSON Schema and GraphQL.
Metro is a new way to collect data. High quality data, in real-time, from any website on the internet.
The way it works is simple: your users generate the data you need in real-time, and share it with you.
People generate data using DataSources, community-made, open-source data-generation plugins. Anyone can make one!