# [](https://curl.se/) Curl is a command-line tool for transferring data specified with URL syntax. Learn how to use curl by reading [the manpage](https://curl.se/docs/manpage.html) or [everything curl](https://everything.curl.dev/). Find out how to install curl by reading [the INSTALL document](https://curl.se/docs/install.html). libcurl is the library curl is using to do its job. It is readily available to be used by your software. Read [the libcurl manpage](https://curl.se/libcurl/c/libcurl.html) to learn how. ## Open Source curl is Open Source and is distributed under an MIT-like [license](https://curl.se/docs/copyright.html). ## Contact Contact us on a suitable [mailing list](https://curl.se/mail/) or use GitHub [issues](https://github.com/curl/curl/issues)/ [pull requests](https://github.com/curl/curl/pulls)/ [discussions](https://github.com/curl/curl/discussions). All contributors to the project are listed in [the THANKS document](https://curl.se/docs/thanks.html). ## Commercial support For commercial support, maybe private and dedicated help with your problems or applications using (lib)curl visit [the support page](https://curl.se/support.html). ## Website Visit the [curl website](https://curl.se/) for the latest news and downloads. ## Source code Download the latest source from the Git server: git clone https://github.com/curl/curl.git ## Security problems Report suspected security problems via [our HackerOne page](https://hackerone.com/curl) and not in public. ## Notice 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. ## Backers Thank you to all our backers 🙏 [Become a backer](https://opencollective.com/curl#section-contribute). ## Sponsors Support this project by becoming a [sponsor](https://curl.se/sponsors.html).