cURL converter

Paste a curl command — for example from Chrome DevTools' “Copy as cURL” or an API's docs — and get equivalent code in JavaScript fetch, Axios, Python requests or Go. Everything runs in your browser.

const response = await fetch("https://mockfox.dev/api/fake/posts", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    Authorization: "Bearer YOUR_TOKEN",
  },
  body: JSON.stringify({
    "title": "Hello",
    "body": "From curl",
    "userId": 1
  }),
});

const data = await response.json();

How to convert a curl command

1. Paste the command into the box (multi-line commands with \ continuations are fine) — or copy one from DevTools with Copy as cURL.
2. Pick the output language. The code updates as you type.
3. Copy or download the code, and check any warnings about options that can't be converted.

Supported curl options

Output-only flags such as -s, -v, -i and -o don't change the request and are ignored. Options that read files (-d @file) produce a placeholder and a warning.

Gotchas when translating curl

• curl doesn't follow redirects unless you pass -L, but fetch, Axios (in browsers), requests and Go do. The converter disables redirects where the library allows it.
• -d sends application/x-www-form-urlencoded by default, even if the data looks like JSON. Add -H 'Content-Type: application/json' or use --json.
• Browsers ignore some headers set from JavaScript (Cookie, User-Agent, Host, Referer are forbidden or overridden), and cross-origin calls need CORS.

Need an endpoint to try your code against? Use the free fake REST API or test any HTTP status code.

Related tools

• curl to Python converter
• curl to fetch converter
• curl to Go converter
• curl to Axios converter
• HTTP headers reference
• Webhook tester — inspect incoming requests