JSON Schema To TypeScript

Generate TypeScript from JSON Schema

JSON Schema is a portable way to describe JSON payloads. TypeScript gives you compile-time safety in frontend and Node.js codebases. This tool compiles JSON Schema documents into TypeScript interfaces and type aliases so your types stay aligned with your validation rules.

What this tool does

Paste a JSON Schema document in the input panel. The compiler resolves references, normalizes the schema, and emits formatted TypeScript definitions with optional const enums for string enums. Results update in real time as you edit the schema or change the root type name.

Why compile JSON Schema to TypeScript?

Maintaining separate schema and type files leads to drift. When your API contract is defined in JSON Schema, generating TypeScript keeps client code, form builders, and mock data in sync. It is especially useful for OpenAPI components, configuration files, and shared domain models.

Common use cases

• Generate frontend types from API request and response schemas.
• Create TypeScript models for config files validated with JSON Schema.
• Prototype SDK types before wiring a full codegen pipeline.
• Share typed interfaces across monorepo packages from a single schema source.

Related tools

Infer types from sample JSON with the JS Object to TypeScript converter, build schemas from examples using the JSON to JSON Schema Generator, or map schemas to OpenAPI with the JSON Schema to OpenAPI Schema tool.