cURL Command Builder

What Is cURL?

cURL (Client URL) is a command-line tool and library for transferring data with URLs. It supports a wide range of protocols including HTTP, HTTPS, FTP, SFTP, and many more. cURL is built into most operating systems and is an essential tool for developers, system administrators, and anyone who needs to interact with APIs or web services from the command line.

With over 200 command-line options, cURL can handle virtually any data transfer scenario. This builder helps you construct the most common HTTP request patterns without memorizing all the flags.

How to Use This Builder

1. Select the HTTP method — Choose GET, POST, PUT, PATCH, DELETE, HEAD, or OPTIONS.
2. Enter the URL — Paste the full URL including protocol (https://).
3. Add query parameters — Use the key-value pairs to build query string parameters.
4. Set headers — Add custom headers like Authorization, Content-Type, or Accept.
5. Provide a body — For POST, PUT, and PATCH methods, enter the request body and select the Content-Type.
6. Configure authentication — Choose Basic Auth or Bearer Token if needed.
7. Toggle options — Enable follow redirects, verbose mode, or other cURL flags.
8. Copy the command — Click the Copy button to copy the generated curl command to your clipboard.

Common cURL Examples

curl --request GET \
  --url 'https://api.github.com/repos/curl/curl' \
  --header 'Accept: application/vnd.github+json' \
  --header 'User-Agent: MyApp'

curl --request POST \
  --url https://api.example.com/users \
  --header 'Authorization: Bearer eyJhbGciOiJIUzI1NiIs...' \
  --header 'Content-Type: application/json' \
  --data '{"name":"John","email":"john@example.com"}'

curl --request POST \
  --url https://api.example.com/upload \
  --form 'file=@/path/to/document.pdf' \
  --form 'description=Monthly report'

FAQs