cURL is a command-line tool and library designed to transfer data using various protocols, such as HTTP, FTP, and SMTP. It is widely used for automating data transfers between servers, downloading files, or interacting with web APIs. The tool is highly popular among developers and system administrators for its versatility and ease of use.

One of cURL's key features is its support for a wide range of internet protocols, which makes it adaptable to different tasks. Users can perform functions like data retrieval, file uploads, and sending HTTP requests without needing complex scripts or software. cURL’s ability to handle URLs directly simplifies many tasks related to web communication.

cURL provides options for advanced users to handle cookies, sessions, and authentication, making it useful for more complex operations like web scraping or testing APIs. Its cross-platform nature means that it can be used on most operating systems, including Linux, macOS, and Windows.

cURL is an open-source project, which means that it is constantly being updated and improved by a global community. Its extensive documentation and community support make it a go-to tool for developers looking to perform data transfers and automate tasks efficiently.

Key Features:

• Supports Multiple Protocols: Works with a variety of protocols like HTTP, HTTPS, FTP, FTPS, SCP, SFTP, and more.
• Command-Line Interface (CLI): Allows users to transfer data using URL syntax via the terminal.
• Data Upload and Download: Can upload and download data to/from servers.
• SSL/TLS Support: Provides secure data transmission over networks using SSL/TLS protocols.
• Proxy Support: Works with different types of proxies, including HTTP and SOCKS.
• Authentication: Offers various authentication methods, including Basic, Digest, NTLM, and Kerberos.
• Cookie Handling: Can read, write, and store cookies, useful for maintaining sessions during HTTP transactions.
• Custom Headers: Allows adding or modifying HTTP headers.
• Bandwidth Limiting: Controls the transfer speed by limiting bandwidth usage.
• Verbose Output: Offers detailed output for debugging and troubleshooting.
• Multipart Form Data: Can handle file uploads and form submissions.