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cURL to Fetch

Convert a cURL command into JavaScript Fetch API code.

JWT & API ToolsBrowser-only • PrivateFree

cURL Command

fetch() Code

Output will appear here...

Privacy First: All processing happens locally in your browser. Your data never leaves your device and is never uploaded to any server.

About cURL to Fetch

The cURL to Fetch converter turns a curl command into equivalent JavaScript using the Fetch API, mapping the method, headers, and body into a ready-to-paste request. It saves you from hand-translating an API example from the docs into browser or Node code. Conversion runs locally in your browser with nothing uploaded. Prefer a library? Use the cURL to Axios converter, and inspect any tokens with the JWT Decoder.

How to Use

1Open cURL to Fetch and paste or type your data into the input area.
2Adjust any available options to match the result you want.
3Your output is generated instantly — no button-clicking required for most tools.
4Use the Copy or Download button to save your result.

Common Use Cases

Inspecting JWT claims while debugging authentication
Converting cURL commands into fetch or Axios code
Building and parsing query strings and tracking URLs
Looking up HTTP status codes during API development

Frequently Asked Questions

What parts of the curl command are converted?

The HTTP method, headers (-H), request body (-d or --data), and URL are all mapped into the equivalent Fetch options object, so the generated code mirrors your curl call.

Does it work with POST and JSON bodies?

Yes. POST, PUT, and other methods are handled, and JSON bodies with their content-type headers are converted into a properly configured Fetch request.

Is cURL to Fetch free to use?

Yes. cURL to Fetch is completely free with no sign-up, no subscription, and no usage limits. Every tool on CodeUtilityKit is free forever.

Is my data safe when I use cURL to Fetch?

Absolutely. cURL to Fetch runs entirely in your browser. Your input is processed locally with JavaScript and is never sent to, stored on, or logged by any server — so it is safe even for private or sensitive data.