What cURL options are supported?

The converter supports -X (method), -H (headers), -d / --data / --data-raw (body), -u (basic auth), -A (User-Agent), --compressed, and -L (redirect following).

How do I convert a cURL command?

Paste your full cURL command (with or without the 'curl' prefix) into the input. The equivalent JavaScript fetch() code appears instantly.

Does the tool send any requests?

No. The conversion is purely syntactic — it parses the cURL command and generates fetch() code. No network requests are made.

cURL to Fetch Converter

Convert cURL commands to JavaScript fetch() code instantly in your browser. Supports headers, methods, body, and auth. No data leaves your device.

cURL Command

fetch() Code

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How to Use

Copy a cURL command from your terminal, browser DevTools, or API documentation.
Paste it into the input panel (with or without the curl prefix).
The equivalent JavaScript fetch() code appears instantly on the right.
Click Copy Output to copy it to your clipboard.
Paste directly into your JavaScript or TypeScript project.

Supported cURL Flags

-X METHOD — HTTP method (GET, POST, PUT, DELETE, PATCH)
-H 'Header: Value' — Request headers
-d 'data' / --data — Request body
--data-urlencode — URL-encoded form data
-u user:pass — Basic authentication
--compressed — Mapped to Accept-Encoding header
-L — Follow redirects (noted in output)

Example

curl -X POST https://api.example.com/data \
  -H 'Content-Type: application/json' \
  -d '{"key":"value"}'