📜TypeScript to JSON Schema Converter Documentation & Guide
Web & Developer
Convert TypeScript interface and type declarations into standard JSON Schema (Draft 2020-12 and Draft-07). Perfect for OpenAPI documentation, JSON Schema validation, and API contracts.
📋How to Convert TypeScript to JSON Schema
- 1. Paste Interface Definition: Enter your TypeScript interface or type alias into the input box or select an example preset.
- 2. Choose Schema Specification: Select between modern Draft 2020-12 or legacy Draft-07, and set additionalProperties rules.
- 3. Convert & Copy Schema: Click Convert to JSON Schema to generate RFC-compliant JSON Schema definitions.
⚙️AST Type Mapping & JSON Schema Draft Compliance
JSON Schema provides a universal, language-agnostic vocabulary to annotate and validate JSON documents across multiple programming languages.
• Draft Specification Compliance: Supports both modern
https://json-schema.org/draft/2020-12/schema and OpenAPI 3.0 compatible draft-07.• Union to Enum Transformation: Translates TypeScript string literal unions (e.g.
'pending' | 'success') into standardized enum: [...] arrays.• Required Property Segregation: Analyzes optional property tokens (
?) to construct accurate required: [...] property arrays.• Array Element Typing: Maps both bracket syntax (
string[]) and generic syntax (Array<T>) to nested items definitions.Directly consumable by Ajv, Swagger/OpenAPI tools, Postman, and backend schema validators.
💡Practical Use Cases
- OpenAPI & Swagger Documentation: Transform internal TypeScript interfaces into public API documentation schemas.
- Cross-Language API Contracts: Share schema definitions between TypeScript frontends and Python, Go, or Java backend microservices.
- Database Document Validation: Enforce MongoDB or PostgreSQL JSONB column validation using standard JSON Schema.
100% Client-Side Privacy Guarantee:All TypeScript parsing and schema conversion execute entirely within your browser. No code or schemas are transmitted over external networks.
