cURL Online — Run cURL in Your Browser | Send Web Request

Run cURL commands online in your browser. Test APIs with curl syntax without installing curl locally. Paste your curl command or build a request visually—Send Web Request understands both.

cURL without installation

cURL is the standard for command-line HTTP requests. But sometimes you can't install it—restricted machines, shared computers, or you're on a device without a terminal. An online cURL tool lets you run the same requests in your browser.

Importing curl commands

Have a curl command from docs or a tutorial? Paste it into Send Web Request. The tool parses the URL, method, headers, and body and populates the form. Adjust if needed and send. Great for replicating requests from documentation.

Common curl flags explained

Most curl commands combine a handful of flags: -X sets the HTTP method (GET, POST, PUT, DELETE), -H adds a header (repeat it for multiple headers), -d sends a request body (and implies POST), -u passes basic-auth credentials as user:password, and -i includes the response headers in the output. Knowing these four or five flags covers the vast majority of API requests you'll see in documentation.

Example curl command

A typical curl POST request:

curl -X POST "https://api.example.com/users" \
  -H "Content-Type: application/json" \
  -d '{"name":"John","email":"john@example.com"}'

curl with authentication

APIs that need a token use an Authorization header; APIs with basic auth use -u. Both are easy to replicate:

# Bearer token
curl "https://api.example.com/me" \
  -H "Authorization: Bearer YOUR_TOKEN"

# Basic auth
curl -u user:password "https://api.example.com/account"

Export as curl

After building a request, copy it as a curl command in the cURL tab of the code snippet panel. Use the generated command in scripts, documentation, or share it with your team. The tool produces the exact curl invocation for the request you composed — headers, method, and body included.

Use cURL online

Open Send Web Request to run curl commands in your browser. No local install required.

Try it now

Open Send Web Request to test APIs in your browser. No signup, no installation, no account required. Just send.

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