Every tool you need to work with JSON in one place

Everything you need to work with JSON—right at your fingertips. 100% free and easy to use: format, validate, convert, compare, and generate code in just a few clicks.

All Core Tools JSON Schema Converters Generators

Schema Generator

Generate JSON Schema from JSON

Schema Validator

Validate JSON against schema

Java to Schema

Convert Java classes to JSON Schema and data

Python to Schema

Convert Python classes to JSON Schema and data

C# to Schema

Convert C# classes and records to JSON Schema

Go to Schema

Convert Go structs to JSON Schema

TypeScript to Schema

Convert TypeScript types to JSON Schema

PHP to Schema

Convert PHP classes to JSON Schema

C to Schema

Convert C structs to JSON Schema

C++ to Schema

Convert C++ classes to JSON Schema

Rust to Schema

Convert Rust structs to JSON Schema

Swift to Schema

Convert Swift structs to JSON Schema

Scala to Schema

Convert Scala case classes to JSON Schema

Ruby to Schema

Convert Ruby classes to JSON Schema

Dart to Schema

Convert Dart classes to JSON Schema

JavaScript to Schema

Convert JavaScript classes to JSON Schema

Mock Generator

Generate mock data from schema

Schema Library

Common schema templates