OpenAPI Client Generator for TypeScript, JavaScript, and Python

Paste an OpenAPI or Swagger specification and generate starter API client code without creating an account. The parser runs locally in your browser, so your API schema is not uploaded to an AI Coding Club server.

This browser tool is best for quick API integration work: inspect endpoints, generate a first client, then adapt the code inside your project with tests and your normal auth conventions.

Need a walkthrough first? Read the OpenAPI client generator tutorial.

  • Generate TypeScript, JavaScript, or Python OpenAPI client code
  • Use OpenAPI or Swagger JSON specs
  • No login, no signup, and no server-side file upload required
  • Preview endpoints before downloading generated code

Upload OpenAPI Spec (JSON)

Use a JSON file. Convert YAML to JSON before importing.

OpenAPI Client Generator FAQ

Is this OpenAPI generator free?

Yes. You can generate starter client code without creating an account.

Is this also a Swagger client generator?

Yes. The tool accepts OpenAPI or Swagger JSON specs for the supported generation flow.

Can this generate a Python OpenAPI client?

Yes. The current generator supports TypeScript, JavaScript, and Python clients.

Do I need to upload my OpenAPI spec to a server?

No. The tool reads your pasted text or local file in the browser for parsing and code generation.

Which languages are supported?

The current generator supports TypeScript, JavaScript, and Python clients.

Should I ship the generated client without review?

No. Treat generated client code as a starter draft, then review auth, error handling, runtime fit, and tests.

🔒 100% Privacy

All processing happens in your browser. No specs or generated code are sent to any server.