A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features https://curl.se/
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Viktor Szakats d445f2d930
lib: skip compiling code with features disabled
In non-SSL, non-SSH, non-H3, non-AppleSecTrust builds.

Also:
- drop unused internal macro `SSL_SYSTEM_VERIFIER`.

Closes #20587
2026-02-13 15:48:23 +01:00
.circleci runtests: detect bad libssh differently for test 1459 (fixing CircleCI libssh job) 2025-11-16 23:28:44 +01:00
.github GHA/windows: bump cygwin/cygwin-install-action to v6.1 2026-02-13 15:41:04 +01:00
CMake msvc: VS2026: unlock picky warning in cmake, test in CI 2026-02-12 19:04:51 +01:00
docs cmake: warn for invalid CURL_TARGET_WINDOWS_VERSION values 2026-02-13 00:24:49 +01:00
include include: mask computed auth/proto bitmasks to 32 bits 2026-01-26 13:48:05 +01:00
lib lib: skip compiling code with features disabled 2026-02-13 15:48:23 +01:00
LICENSES krb5: drop support for Kerberos FTP 2025-09-20 23:58:28 +02:00
m4 tidy-up: miscellaneous 2026-02-12 14:52:16 +01:00
projects tidy-up: miscellaneous 2026-02-01 00:54:23 +01:00
scripts tidy-up: miscellaneous 2026-02-12 14:52:16 +01:00
src tidy-up: miscellaneous 2026-02-12 14:52:16 +01:00
tests tidy-up: miscellaneous 2026-02-12 14:52:16 +01:00
.dir-locals.el copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
.editorconfig .editorconfig: add 2025-09-02 08:36:40 +02:00
.git-blame-ignore-revs copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
.gitattributes winbuild: MS-DOS batch tidy-ups 2024-07-02 19:26:15 +02:00
.gitignore build: drop the winbuild build system 2025-09-20 01:20:25 +02:00
.mailmap REUSE: add copyright header to two files 2025-11-03 16:08:52 +01:00
acinclude.m4 build: check MSG_NOSIGNAL directly, drop detection and interim macro 2026-02-11 14:51:08 +01:00
appveyor.sh CI: log downloaded file hashes, pin manually bumped ones 2026-02-05 03:20:46 +01:00
appveyor.yml CI: log downloaded file hashes, pin manually bumped ones 2026-02-05 03:20:46 +01:00
buildconf copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
CHANGES.md CHANGES: fix typo in filename 2026-01-01 12:20:10 +01:00
CMakeLists.txt cmake: normalize uppercase hex winver (for display) 2026-02-13 11:56:13 +01:00
configure.ac tidy-up: miscellaneous 2026-02-12 14:52:16 +01:00
COPYING COPYING: bump copyright year range to 1996 - 2026 2026-01-08 23:19:44 +01:00
curl-config.in autotools: tidy-up if expressions 2025-12-10 22:29:19 +01:00
Dockerfile Dockerfile: update debian:bookworm-slim Docker digest to 98f4b71 2026-02-05 17:36:44 +01:00
GIT-INFO.md REUSE: add copyright header to two files 2025-11-03 16:08:52 +01:00
libcurl.pc.in configure: do not echo most inherited LDFLAGS to config files 2024-11-14 09:55:45 +01:00
Makefile.am tidy-up: miscellaneous 2026-01-15 13:06:13 +01:00
README BUG-BOUNTY.md: we stop the bug-bounty end of Jan 2026 2026-01-26 08:26:28 +01:00
README.md README: add MQTTS 2026-02-05 22:55:01 +01:00
RELEASE-NOTES RELEASE-NOTES: synced 2026-02-12 09:25:50 +01:00
renovate.json renovate: merge two custom regex rules, escape dots 2026-01-23 15:58:16 +01:00
REUSE.toml REUSE: drop broken reference to MAIL-ETIQUETTE 2026-01-19 07:48:15 +01:00
SECURITY.md BUG-BOUNTY.md: we stop the bug-bounty end of Jan 2026 2026-01-26 08:26:28 +01:00

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curl is a command-line tool for transferring data from or to a server using URLs. It supports these protocols: DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS.

Learn how to use curl by reading the man page or everything curl.

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 man page to learn how.

Open Source

curl is Open Source and is distributed under an MIT-like license.

Contact

Contact us on a suitable mailing list or use GitHub issues/ pull requests/ discussions.

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

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Download the latest source from the Git server:

git clone https://github.com/curl/curl

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