Quicktype – it's like Uber, but for JSON

What it does

Millions of developers have used quicktype to generate ten billion lines of typesafe models, serializers, and validators from JSON, JSON Schema, and GraphQL in TypeScript, Python, Swift, C#, Go, Rust, Kotlin, Java, C++, Zod and more. Use it in the browser, from the command line, or give it to your AI coding agent over MCP.

quicktype infers types from your JSON and generates models, serializers, and validators in more than 25 languages. Millions of developers have generated billions of lines of code with it, and more than 200 contributors have contributed to its open source project. Use it in the browser, from the command line, in your build pipeline, or hand it to your AI coding agent over MCP . Three steps, in the browser, from the command line, or inside your agent. { "people" : [ { "name" : "Atticus" , "high score" : 100 }, { "name" : "Cleo" , "high score" : 900 }, { "name" : "Orly" }, { "name" : "Jasper" } ] } Sample JSON, an API URL, a JSON Schema, or a GraphQL query: whatever you have. class MyData {…from quicktype.io

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  quicktype2018 · quicktype.io · ▲88

  Generate beautiful, typesafe code from data

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  quicktype converts JSON, TypeScript, GraphQL to types in 18 languages2020 · app.quicktype.io · ▲8
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