What HTTP methods are supported?

GET, POST, PUT, PATCH, and DELETE are all supported.

Can I add custom headers?

Yes — use the Add Header button to add as many key/value header rows as you need.

How do I send a JSON body?

Switch to the JSON tab in the request body section and paste your JSON. The tool will automatically add the Content-Type: application/json header.

What authentication options are available?

None, HTTP Basic (username/password), and Bearer token are all supported.

Does this send a real request?

No — the tool only generates the command string. Copy it and run it in your own terminal.

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cURL Command Builder

Build and generate cURL commands interactively

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About this tool

Construct cURL commands visually by filling in the URL, HTTP method, headers, query parameters, request body, and authentication. Instantly see the generated command and its equivalent fetch() JavaScript code. Copy with one click.

How to use

1 Enter the target URL.
2 Choose the HTTP method (GET, POST, PUT, PATCH, DELETE).
3 Add any headers or query parameters using the + buttons.
4 For POST/PUT/PATCH, choose a body format (raw, form, or JSON) and enter the content.
5 Select an authentication type if required.
6 Toggle follow-redirects, verbose, or timeout options as needed.
7 Copy the generated cURL command or the equivalent fetch() snippet.

Frequently Asked Questions

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