Developer Utilities · Free tool

Curl to Fetch Converter

Convert any cURL command to an equivalent JavaScript fetch() call instantly, with support for -X, -H, -d, and basic auth. Free online, no signup.

Updated June 2026

Curl command

JavaScript fetch()

const response = await fetch("https://api.example.com/users", {
  method: "POST",
  headers: {,
    "Authorization": "Bearer abc123",,
    "Content-Type": "application/json",,
  },
  body: JSON.stringify({
  "name": "Jane",
  "email": "jane@example.com"
})
});
const data = await response.json();
console.log(data);

Supports the most common flags: -X, -H, -d/--data, -u (basic auth), --cookie, -G, -A, -e. Complex multipart uploads may need hand-tweaking after conversion.

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What it does

Paste a curl command and get an equivalent JavaScript fetch() call. Supports the most common flags: -X, -H, -d/--data, -u (basic auth), --cookie, -G, -A, -e.

Auto-detects JSON bodies, pretty-prints them, sets the right method when -d implies POST, and handles backslash-newline continuations.

Embed this tool on your siteShow snippet

Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.

<iframe src="https://freetoolarena.com/embed/curl-to-fetch" width="100%" height="720" frameborder="0" loading="lazy" title="Curl to Fetch Converter" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>

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How to use it

Paste your curl command (multi-line is fine — backslash continuations work).
fetch() code appears below, ready to copy.
Drop it into a browser console or .js file.

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