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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, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features https://curl.se/
  • C 74.5%
  • Perl 8.3%
  • Python 5.3%
  • M4 4.6%
  • CMake 2.8%
  • Other 4.4%
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Daniel Stenberg 81f950dd90
strparse: split a multi-line assert into many separate ones
This way we can better tell exactly which condition that triggers. Like
in fuzzer logs.

Closes #21599
2026-05-13 23:47:39 +02:00
.circleci runtests: detect bad libssh differently for test 1459 (fixing CircleCI libssh job) 2025-11-16 23:28:44 +01:00
.github GHA: (re-)enable SMB in a few builds 2026-05-12 14:53:48 +02:00
CMake cmake: export/forward NGTCP2_CRYPTO_BACKEND 2026-05-11 21:53:39 +02:00
docs docs: fix grammar and wording in FAQ 2026-05-13 23:19:26 +02:00
include RELEASE-NOTES: synced 2026-05-06 09:19:12 +02:00
lib strparse: split a multi-line assert into many separate ones 2026-05-13 23:47:39 +02:00
LICENSES spacecheck: check long lines and repeat spaces, fix fallouts 2026-03-25 11:02:08 +01:00
m4 gnutls: allow building with nettle 4.0 2026-05-12 03:54:24 +02:00
projects build: link bcrypt.lib via vcxproj files 2026-04-20 16:29:25 +02:00
scripts pythonlint.sh: make it fail on error, fix ruff warnings in pytest 2026-05-13 22:59:36 +02:00
src tool_urlglob: check glob use before access 2026-05-13 13:12:10 +02:00
tests pythonlint.sh: make it fail on error, fix ruff warnings in pytest 2026-05-13 22:59:36 +02:00
.clang-tidy.yml clang-tidy: enable more checks, fix fallouts 2026-04-14 02:20:16 +02:00
.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 buildconf: remove 2026-04-04 11:35:24 +02:00
.gitignore build: drop the winbuild build system 2025-09-20 01:20:25 +02:00
.mailmap tool: fix two more allocator mismatches 2026-03-30 16:17:42 +02:00
acinclude.m4 configure: tidy up comments 2026-04-10 23:19:41 +02:00
appveyor.sh appveyor: bump to OpenSSL 3.6 2026-04-22 09:29:05 +02:00
appveyor.yml CI: set DO_NOT_TRACK=1 2026-04-23 11:22:35 +02:00
CHANGES.md CHANGES: fix typo in filename 2026-01-01 12:20:10 +01:00
CMakeLists.txt cmake: merge if blocks (tidy-up) 2026-05-13 22:47:56 +02:00
configure.ac configure: tidy up comments 2026-04-10 23:19:41 +02:00
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 67b30a6 2026-05-09 15:33:09 +02:00
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 rtmp: drop support 2026-03-21 14:56:06 +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 rtmp: drop support 2026-03-21 14:56:06 +01:00
RELEASE-NOTES THANKS-filter: update 2026-05-13 00:43:27 +02:00
renovate.json renovate: use standard bump formula for OpenSSL 2026-04-15 10:17:33 +02:00
REUSE.toml badwords: avoid 'simply' 2026-03-10 19:34:06 +01:00
SECURITY.md stop using the word 'just' 2026-03-03 15:30:22 +01:00

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.

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Website

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Download the latest source from the Git server:

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

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