cURL is described as 'Computer software project providing a library and command-line tool for transferring data using various protocols with URL syntax: supporting FTP, FTPS, SCP, SFTP, HTTP, HTTPS, TFTP, TELNET, DICT, LDAP, LDAPS and FILE' and is a very popular HTTP Client in the development category. There are more than 25 alternatives to cURL for a variety of platforms, including Mac, Windows, Linux, BSD and Linux Mobile apps. The best cURL alternative is Wget, which is both free and Open Source. Other great apps like cURL are aria2, HTTPie for Terminal, Transmit and xh.
GNU Wget is a free software package for retrieving files using HTTP(S) and FTP, the most widely-used Internet protocols. It is a non-interactive command line tool, so it may easily be called from scripts, cron jobs, terminals without X-Windows support, etc.
HTTPie (pronounced aitch-tee-tee-pie) is a command line HTTP client. Its goal is to make CLI interaction with web services as human-friendly as possible. It provides a simple http command that allows for sending arbitrary HTTP requests using a simple and natural syntax, and...
Like cURL, HTTPie also has JSON support, but HTTPie reduces syntax by leaving out the header syntax. This makes a test call to an API easier to remember. Avoiding time spent reviewing a doc. For example: $ http POST https://api.ctl.io/v2/authentication/login 'username=YOUR.USERNAME' 'password=YOUR.PASSWORD' A similar call using cURL requires header syntax.
Transmit is a fast and wonderful file transfer app. It supports every major cloud storage provider, and it looks awfully nice.
xh is a friendly and fast tool for sending HTTP requests. It reimplements as much as possible of HTTPie's excellent design, with a focus on improved performance.
Hurl is a command line tool that runs HTTP requests defined in a simple plain text format. It can capture values, evaluate queries on headers and body response. It is very versatile: it can be used for both fetching data and testing HTTP sessions.
If you like the interface of HTTPie but miss the features of curl, curlie is what you are searching for. Curlie is a frontend to curl that adds the ease of use of httpie, without compromising on features and performance.
Guzzle is a PHP HTTP client that makes it easy to send HTTP requests and trivial to integrate with web services.
lftp is a command-line file transfer program which besides FTP, also supports FTPS, HTTP, HTTPS, HFTP, FISH, and SFTP. A BitTorrent client is also built-in as torrent command.
Kreya is a GUI client for gRPC, REST and WebSocket APIs with innovative features for environments, authorizations and more.
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Wget has better defaults for troubleshooting