bagder/curl

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, MQTTS, POP3, POP3S, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features

42,829

stars

38,100

commits

C

primary language

Sep 11, 2026

updated

curl.se/
c
client
curl
ftp
gopher
hacktoberfest
http
https
imaps
ldap
libcurl
library
mqtt
pop3
scp
sftp
transfer-data
transferring-data
user-agent
websocket
Browse cluster: HTTP/2 and WebSocket Server Implementations

README

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 :pray: Become a backer.

Sponsors

Support this project by becoming a sponsor.

Contributors

(top 30 of 410)

bagder

20,647 commits

vszakats

3,361 commits

yangtse

2,587 commits

captain-caveman2k

1,916 commits

bagder/curl

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, MQTTS, POP3, POP3S, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features

42,829

stars

38,100

commits

C

primary language

Sep 11, 2026

updated

curl.se/
c
client
curl
ftp
gopher
hacktoberfest
http
https
imaps
ldap
libcurl
library
mqtt
pop3
scp
sftp
transfer-data
transferring-data
user-agent
websocket
Browse cluster: HTTP/2 and WebSocket Server Implementations

README

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 :pray: Become a backer.

Sponsors

Support this project by becoming a sponsor.

Contributors

(top 30 of 410)

bagder

20,647 commits

vszakats

3,361 commits

yangtse

2,587 commits

captain-caveman2k

1,916 commits

Languages

C

75.2%

Perl

7.8%

Python

5.6%

M4

4.3%

CMake

2.7%

DIGITAL Command Language

2.0%

Shell

1.3%