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
Stefan Eissing fbcf10ab84
progress: fx CURLINFO time reporting
Whack the times reported for a transfer (see
https://curl.se/libcurl/c/curl_easy_getinfo.html#TIMES) into order for
all variations of up-/download, http/ftp etc. Make sure they are
reported in the documented order.

There is still the *possibility* of PRETRANSFER being longer then
POSTTRANSFER, if a server sends a response before an upload is done.
POST is the time the first response byte is received, and PRE is the
time the last byte was sent by curl.

This may happen with more likelihood on HTTP/2 and 3 for a server
rejected upload. But for successful uploads, the answer will almost over
come afterwards.

Undo the previous twists in lib500.c tests, adjust pytest timeline
checks.

Fixes #21828
Reported-by: BazaarAcc32 on github
Closes #21843
2026-06-07 14:39:10 +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: bump 2 GitHub Actions 2026-06-03 00:27:43 +02:00
CMake tidy-up: miscellaneous 2026-06-01 22:33:57 +02:00
docs CURLOPT_PINNEDPUBLICKEY.md: does not apply for other origins 2026-06-07 00:12:02 +02:00
include tidy-up: miscellaneous 2026-06-05 16:57:38 +02:00
lib progress: fx CURLINFO time reporting 2026-06-07 14:39:10 +02:00
LICENSES spacecheck: check long lines and repeat spaces, fix fallouts 2026-03-25 11:02:08 +01:00
m4 tidy-up: miscellaneous 2026-06-01 22:33:57 +02:00
projects tidy-up: miscellaneous 2026-06-05 16:57:38 +02:00
scripts tidy-up: miscellaneous 2026-06-05 16:57:38 +02:00
src tidy-up: miscellaneous 2026-06-05 16:57:38 +02:00
tests progress: fx CURLINFO time reporting 2026-06-07 14:39:10 +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 mailmap: cmeister2@gmail is primary for Max Dymond 2026-05-24 12:02:26 +02:00
acinclude.m4 tidy-up: miscellaneous 2026-06-01 22:33:57 +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 build: say Quiche support is experimental, where missing 2026-06-01 22:33:57 +02:00
configure.ac build: say Quiche support is experimental, where missing 2026-06-01 22:33:57 +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: fix typo in variable name 2026-05-20 13:01:56 +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 RELEASE-NOTES: synced 2026-06-02 17:01:58 +02:00
renovate.json renovate: use standard bump formula for OpenSSL 2026-04-15 10:17:33 +02:00
REUSE.toml github: Add AI usage warning to issue, doc and PR templates 2026-06-02 13:47:01 -04:00
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.

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