curl_version(3) Library Functions Manual curl_version(3)
NAME
curl_version - returns the libcurl version string
SYNOPSIS
#include <curl/curl.h>
char *curl_version();
DESCRIPTION
Returns a human readable string with the version number of libcurl and
some of its important components (like OpenSSL version).
For MultiSSL builds the string contains all SSL backend names and the
inactive backend names are in parentheses. For example "(OpenSSL/3.0.8)
Schannel" or "OpenSSL/3.0.8 (Schannel)".
We recommend using curl_version_info(3) instead.
PROTOCOLS
This functionality affects all supported protocols
EXAMPLE
int main(void)
{
printf("libcurl version %s\n", curl_version());
}
AVAILABILITY
Added in curl 7.1
RETURN VALUE
A pointer to a null-terminated string. The string resides in a
statically allocated buffer and must not be freed by the caller.
SEE ALSO
curl_version_info(3)
libcurl 2026-03-23 curl_version(3)
curl 8.19.0 - Generated Tue Mar 24 16:01:22 CDT 2026