JSON Converter

Paste your JSON below and convert it to 22+ different formats.

Supported Conversions

BigQueryFlowGo BSONGo StructGraphQLio-tsJavaJSDocJSON SchemaKotlinMobXMongooseMySQLPropTypesRustSarcasticScalaTOMLTypeScriptYAMLZod

How to Convert JSON Data

Our free JSON converter transforms your JSON data into multiple programming languages and data formats instantly. Here's how to use it effectively:

  1. Paste or Enter JSON: Copy your JSON data and paste it into the input field. The tool accepts valid JSON objects of any complexity.
  2. Click Convert: Press the "Convert to All Formats" button to generate outputs in all supported formats simultaneously.
  3. Copy Results: Each output card has a copy button - click to copy the converted code to your clipboard.
  4. Use in Your Project: Paste the generated code directly into your source files. TypeScript, Go Struct, and other language outputs are ready to use.

Key Features of JSON Converter

  • 22+ Output Formats: Convert to TypeScript, Flow, Zod, GraphQL, Java, Go, Kotlin, Rust, Scala, and many more.
  • Nested Structure Support: Handles complex nested objects and arrays, generating proper type definitions.
  • Real-time Validation: Validates JSON syntax and shows clear error messages if your JSON is invalid.
  • Database Schema Generation: Create MySQL, MongoDB, and BigQuery schemas from your JSON data.
  • Zero Server Interaction: All conversions happen locally - your data never leaves your browser.

Common Use Cases

Developers use our JSON converter for TypeScript interface generation when building TypeScript applications. Backend developers generate Go structs or Java classes from API response JSON. Database administrators create MySQL table schemas from JSON data exports. Frontend developers convert JSON to React PropTypes or MobX state tree types. DevOps engineers transform JSON configurations to YAML for Kubernetes or CI/CD pipelines.

Tips for Best Results

  • Ensure your JSON is properly formatted before converting - invalid JSON will show error messages.
  • For TypeScript outputs, use descriptive key names in your JSON for better type inference.
  • The converter handles null values - they become optional types in TypeScript and nullable fields in other languages.
  • Arrays in JSON become array types in most outputs - check the generated type definitions for correct array handling.

Frequently Asked Questions

How do I convert JSON to TypeScript?

Simply paste your JSON into the input field and click Convert. The tool will instantly generate TypeScript interfaces and types for your data structure.

Is my data sent to servers?

No. All conversion happens locally in your browser using JavaScript. Your data never leaves your device and is not transmitted to any server.

How many formats does JSON Converter support?

The JSON Converter supports 22+ formats including TypeScript, Flow, Zod, GraphQL, Java, Go, Kotlin, Rust, Scala, and many more.

Can I convert nested JSON objects?

Yes! The converter handles nested objects and arrays, automatically generating proper type definitions for complex data structures.

Does it support JSON Schema generation?

Yes, you can convert JSON to JSON Schema which can be used for validation in other applications and APIs.