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cURL to JavaScript

Developer

Convert cURL commands to JavaScript fetch or Axios code with proper async/await syntax.

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curl Command
JavaScript (fetch)
fetch("https://api.example.com/v1/users", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "Authorization": "Bearer token"
  },
  body: JSON.stringify({"name":"Ada Lovelace"})
})
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error(error));

A curl command translates differently into JavaScript than into a backend scripting language, since a frontend request typically needs to work with promises, either handled through fetch's own .then chains and async/await syntax, or through Axios, a popular library with its own slightly different call conventions and automatic JSON parsing, and picking the wrong pattern produces code that runs but doesn't fit how the rest of a codebase actually handles asynchronous requests. This tool converts a curl command into JavaScript using either fetch or Axios, with proper async/await syntax, matching whichever pattern a specific frontend codebase actually uses rather than a generic style that might not fit.

See more about the cURL to JavaScript

Useful for converting an API call copied from documentation into fetch-based code for a vanilla JavaScript project, generating Axios-based code for a codebase already built around that library, or turning a curl example into working JavaScript without hand-translating headers and the request body.

Key features

  • Clean interface
  • Fast processing
  • No signup required
  • Works offline

Quick answers for cURL to JavaScript

What does the generated code look like?
A fetch() call with method, headers object, and body, followed by .then() handlers that parse the JSON response and log it, plus a .catch() for errors.
Does it detect JSON request bodies?
Yes, if the -d payload parses as valid JSON it is wrapped in JSON.stringify(...), otherwise it is passed through as a plain string.
Does it also generate Axios code?
No, only fetch() output is generated currently, regardless of which library you prefer.