Instantly generate C# models and helper methods from JSON.

Generate C# classes with Json.NET attributes
from JSON, JSON Schema, and GraphQL queries.

quicktype is fluent in

↑ click a language to try it

Install quicktype with brew

$ brew install quicktype$ brew install quicktype

Generate C# for a simple JSON sample$ echo '[1, 2, 3.14]' | quicktype --lang cs

$ echo '[1, 2, 3.14]' \ | quicktype --lang cs

Generate C# for a sample JSON file

$ quicktype person.json -o Person.cs$ quicktype person.json -o Person.cs

Generate C# from a directory of samples

$ ls spotify-api-samples$ ls spotify-api-samples

album.json artist.json track.json$ quicktype spotify-api-samples -o QTSpotifyClient.cs

$ quicktype -o SpotifyClient.cs \ spotify-api-samples

Generate C# models for a weather API$ quicktype https://goo.gl/Dq2yKd -o Weather.cs

$ quicktype -o Weather.cs \ https://goo.gl/Dq2yKd

Generate C# classes from TypeScript types

$ quicktype types.ts -o Types.cs$ quicktype types.ts -o Types.cs

Generate C# from a Postman Collection$ quicktype ImgurAPI_postman_collection.json -l postman -o Imgur.cs

$ quicktype -o Imgur.cs \ -l postman \ ImgurAPI_postman_collection.json

Find a client library: A good one is golden, however most are outdated or simply unavailable in your app’s programming language.
Write your own client library: Takes a lot of effort and must be updated when the API changes. You should be focused on your app, anyway.
Read API data as dynamic, untyped values: This is an unpleasant way to program and leaves your app vulnerable to API changes.

Generate your client libraries: Given sample API responses, quicktype will generate an easy-to-use client library in your app’s language.
Spend more time on your app: quicktype can regenerate types when APIs change, so you can simply update affected app code, if any.
Access strongly typed API data with help: Get more out of your editor or IDE (autocomplete, refactoring) when working with typed API data.