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
Find a file
Daniel Stenberg b8ceb430be
cd2nroff: stricter checks for asterisks for italics
The nroff (man page) version of the markdown docs could get asterisks
mistreated as emphasis - seen in the CURLOPT_WRITEDATA manpage. The
regex now more stricter requires a word character to follow an italics
starting asterisk and there needs to be a word character or a closing
parenthesis before the italics ending asterisk.

Also: fix CURLINFO_CERTINFO.md which used wrong italics - it was not
rendered correctly on GitHub and with other generic markdown parsers.

Reported-by: Christian Ullrich
Fixes #22257
Closes #22260
2026-07-04 00:32:58 +02:00
.circleci
.github GHA/windows: fix MSYS2 UWP job name 2026-07-03 01:35:34 +02:00
CMake build: drop superfluous STDC_HEADERS macro 2026-06-29 11:11:16 +02:00
docs cd2nroff: stricter checks for asterisks for italics 2026-07-04 00:32:58 +02:00
include
lib wolfssl: fix build for wolfssl without bio chain support 2026-07-03 11:42:19 -04:00
LICENSES
m4 configure: link -lcrypt32 instead of -lm for wolfSSL on Windows 2026-07-03 01:35:34 +02:00
projects build: drop superfluous STDC_HEADERS macro 2026-06-29 11:11:16 +02:00
scripts cd2nroff: stricter checks for asterisks for italics 2026-07-04 00:32:58 +02:00
src tool_cb_hdr: de-duplicate filename setter 2026-07-01 12:12:37 +02:00
tests FTP: fix TLS session reuse on the data connection 2026-07-02 17:39:04 +02:00
.clang-tidy.yml
.dir-locals.el
.editorconfig
.git-blame-ignore-revs
.gitattributes
.gitignore
.mailmap
acinclude.m4
appveyor.sh
appveyor.yml
CHANGES.md
CMakeLists.txt build: drop superfluous STDC_HEADERS macro 2026-06-29 11:11:16 +02:00
configure.ac
COPYING
curl-config.in
Dockerfile
GIT-INFO.md
libcurl.pc.in
Makefile.am
README
README.md
RELEASE-NOTES RELEASE-NOTES: synced 2026-07-01 23:16:12 +02:00
renovate.json
REUSE.toml
SECURITY.md

curl logo

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, 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.

Commercial support

For commercial support, maybe private and dedicated help with your problems or applications using (lib)curl visit the support page.

Website

Visit the curl website for the latest news and downloads.

Source code

Download the latest source from the Git server:

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

Security problems

Report suspected security problems privately and not in public.

Backers

Thank you to all our backers 🙏 Become a backer.

Sponsors

Support this project by becoming a sponsor.