Swagger to TypeScript Interface Generator
Convert Swagger or OpenAPI specifications to clean TypeScript interfaces instantly. Free browser-based generator with no installation or signup required.
About Swagger to TypeScript
The Swagger to TypeScript converter transforms OpenAPI and Swagger specifications into accurate, strongly typed TypeScript interfaces. Designed for web and mobile developers, this utility eliminates the tedious task of manually typing API response models, requests, and data payloads.
Everything processes locally in your browser, meaning your proprietary API schemas are never transmitted to an external server. Simply paste or upload your specification in JSON or YAML to produce production-ready TypeScript definitions in seconds without installing CLI packages.
Key features
- Supports both JSON and YAML OpenAPI specifications
- Converts Swagger 2.0 and OpenAPI 3.0 schemas
- Generates clean, strongly typed TypeScript interfaces and types
- Runs entirely in the browser for data privacy
- Accurately maps nested objects, arrays, and optional properties
- Provides instant copy-to-clipboard and downloadable output files
How to use Swagger to TypeScript
- Paste your Swagger or OpenAPI specification into the input area or upload your file.
- Ensure your input is valid JSON or YAML format.
- View the automatically generated TypeScript interfaces in the output panel.
- Copy the resulting TypeScript code to your clipboard or download it as a .ts file.
Who is it for?
- Frontend developers creating type-safe API clients in React, Vue, or Angular
- Full-stack teams synchronizing frontend models with backend API updates
- Developers quick-prototyping integrations without configuring complex CLI code generators
- Teams auditing legacy Swagger schemas for TypeScript compatibility
Frequently asked questions
Does this tool support both Swagger 2.0 and OpenAPI 3.0?
Yes, the generator parses both Swagger 2.0 specifications and newer OpenAPI 3.0/3.1 documents in JSON or YAML format.
Is my API specification sent to a remote server?
No, all parsing and code generation run completely within your browser. Your schemas and API structures remain private to your machine.
Can I input YAML instead of JSON?
Yes, you can paste either formatted JSON or YAML directly into the input editor, and the tool will parse it automatically.
Does the generator handle nested models and enums?
Yes, the tool resolves referenced schemas, nested properties, array types, and string or numeric enums defined within your specification.
Is this tool completely free to use?
Yes, the Swagger to TypeScript generator is 100% free to use with no usage limits and no account required.