1 2 3[](https://bestpractices.coreinfrastructure.org/projects/63) 4[](https://scan.coverity.com/projects/curl) 5[](https://ci.appveyor.com/project/curlorg/curl) 6[](https://dev.azure.com/daniel0244/curl/_build/latest?definitionId=1&branchName=master) 7[](https://cirrus-ci.com/github/curl/curl) 8[](#backers) 9[](#sponsors) 10[](https://lgtm.com/projects/g/curl/curl/context:cpp) 11[](https://app.codacy.com/app/curl/curl) 12[](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:curl) 13 14Curl is a command-line tool for transferring data specified with URL 15syntax. Find out how to use curl by reading [the curl.1 man 16page](https://curl.se/docs/manpage.html) or [the MANUAL 17document](https://curl.se/docs/manual.html). Find out how to install Curl 18by reading [the INSTALL document](https://curl.se/docs/install.html). 19 20libcurl is the library curl is using to do its job. It is readily available to 21be used by your software. Read [the libcurl.3 man 22page](https://curl.se/libcurl/c/libcurl.html) to learn how! 23 24You can find answers to the most frequent questions we get in [the FAQ 25document](https://curl.se/docs/faq.html). 26 27Study [the COPYING file](https://curl.se/docs/copyright.html) for 28distribution terms. 29 30## Contact 31 32If you have problems, questions, ideas or suggestions, please contact us by 33posting to a suitable [mailing list](https://curl.se/mail/). 34 35All contributors to the project are listed in [the THANKS 36document](https://curl.se/docs/thanks.html). 37 38## Commercial support 39 40For commercial support, maybe private and dedicated help with your problems or 41applications using (lib)curl: https://curl.se/support.html 42 43## Website 44 45Visit the [curl website](https://curl.se/) for the latest news and 46downloads. 47 48## Git 49 50To download the very latest source from the Git server do this: 51 52 git clone https://github.com/curl/curl.git 53 54(you'll get a directory named curl created, filled with the source code) 55 56## Security problems 57 58Report suspected security problems via [our HackerOne 59page](https://hackerone.com/curl) and not in public! 60 61## Notice 62 63Curl contains pieces of source code that is Copyright (c) 1998, 1999 Kungliga 64Tekniska Högskolan. This notice is included here to comply with the 65distribution terms. 66 67## Backers 68 69Thank you to all our backers! [[Become a backer](https://opencollective.com/curl#backer)] 70 71<a href="https://opencollective.com/curl#backers" target="_blank"><img src="https://opencollective.com/curl/backers.svg?width=890"></a> 72 73## Sponsors 74 75Support this project by becoming a sponsor. Your logo will show up here with a 76link to your website. [[Become a 77sponsor](https://opencollective.com/curl#sponsor)] 78 79<a href="https://opencollective.com/curl/sponsor/0/website" target="_blank"><img src="https://opencollective.com/curl/sponsor/0/avatar.svg"></a> 80<a href="https://opencollective.com/curl/sponsor/1/website" target="_blank"><img src="https://opencollective.com/curl/sponsor/1/avatar.svg"></a> 81<a href="https://opencollective.com/curl/sponsor/2/website" target="_blank"><img src="https://opencollective.com/curl/sponsor/2/avatar.svg"></a> 82<a href="https://opencollective.com/curl/sponsor/3/website" target="_blank"><img src="https://opencollective.com/curl/sponsor/3/avatar.svg"></a> 83<a href="https://opencollective.com/curl/sponsor/4/website" target="_blank"><img src="https://opencollective.com/curl/sponsor/4/avatar.svg"></a> 84<a href="https://opencollective.com/curl/sponsor/5/website" target="_blank"><img src="https://opencollective.com/curl/sponsor/5/avatar.svg"></a> 85<a href="https://opencollective.com/curl/sponsor/6/website" target="_blank"><img src="https://opencollective.com/curl/sponsor/6/avatar.svg"></a> 86<a href="https://opencollective.com/curl/sponsor/7/website" target="_blank"><img src="https://opencollective.com/curl/sponsor/7/avatar.svg"></a> 87<a href="https://opencollective.com/curl/sponsor/8/website" target="_blank"><img src="https://opencollective.com/curl/sponsor/8/avatar.svg"></a> 88<a href="https://opencollective.com/curl/sponsor/9/website" target="_blank"><img src="https://opencollective.com/curl/sponsor/9/avatar.svg"></a> 89