cURL Builder - Build cURL Commands in Your Browser

An online curl command line builder. Generate curl commands to test your API endpoints.

What is cURL?

cURL (Client URL) is a command-line tool and library for transferring data with URLs. It supports various protocols like HTTP, HTTPS, FTP, and more, making it a versatile choice for testing APIs, downloading files, or performing network tasks. Its simplicity and power come from the ability to execute complex operations through straightforward commands.

cURL is available on most operating systems, including Linux, macOS, and Windows.

From a one-off request to continuous monitoring

A curl command tells you what an endpoint did once, from wherever you happen to be sitting. If you need to know it keeps working — and to hear about it the moment it stops — openstatus uptime monitoring runs the same request on a schedule from 28 regions and alerts you when the status code, response body, or latency drifts.

Want the timing breakdown rather than the command? Drop the same URL into the Global Speed Checker to see DNS, TCP, TLS, and TTFB split out per region.