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    Curl is a command-line tool for transferring data specified with URL syntax. Find out how to use curl by reading the curl.1 man page or the MANUAL document. Find out how to install Curl by reading the INSTALL document.

    libcurl is the library curl is using to do its job. It is readily available to be used by your software. Read the libcurl.3 man page to learn how.

    You can find answers to the most frequent questions we get in the FAQ document.

    Study the COPYING file for distribution terms.


    If you have problems, questions, ideas or suggestions, please contact us by posting to a suitable mailing list.

    All contributors to the project are listed in the THANKS document.

    Commercial support

    For commercial support, maybe private and dedicated help with your problems or applications using (lib)curl:


    Visit the curl website for the latest news and downloads.


    To download the latest source from the Git server do this:

    git clone

    (you will get a directory named curl created, filled with the source code)

    Security problems

    Report suspected security problems via our HackerOne page and not in public!


    Curl contains pieces of source code that is Copyright (c) 1998, 1999 Kungliga Tekniska Högskolan. This notice is included here to comply with the distribution terms.


    Thank you to all our backers! 🙏 [Become a backer]


    Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]


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    发行版本 57



    贡献者 236



    • C 76.2 %
    • Perl 7.5 %
    • M4 6.8 %
    • DIGITAL Command Language 2.7 %
    • CMake 2.0 %