cURL to TypeScript Fetch

Native fetch, fully typed

The generated function builds the URL with URL / searchParams, throws on non-2xx responses, and returns Promise<TResponse>. No dependencies required.

Why curl2ts?

• Recursive type inference. JSON request bodies become clean, named interfaces — nested objects get their own interface, arrays are typed, and keys missing from some array items become optional.
• Typed query parameters. The URL query string becomes a QueryParams interface, passed as an optional argument.
• Fetch, Axios or Ky. Every client returns Promise<TResponse> so you can plug in your own response type.
• Private by design. Your Bearer tokens and cookies never leave the browser tab. There is no backend.

Supported cURL flags

-X / --request, -H / --header, -d / --data / --data-raw / --data-binary, --json, -u / --user, -b / --cookie, --url, plus single, double and $'…' quoting and \ line continuations (Chrome / Firefox "Copy as cURL" works).