Test::Version checks to ensure that all modules have a version defined, and that the version is valid.

Routines to manipulate defhash, a convention to define things more precisely and uniformly using a hash, in Perl.

YAML::XS is a Perl XS binding to libyaml which offers Perl the best YAML support to date.

The File::Listing module exports a single function called parse_dir(), which can be used to parse directory listings.

This Clone::Choose module checks several different modules which provide a clone() function and selects an appropriate one.

This module provides functions to encode and decode UTF-8 encoding form as specified by Unicode and ISO/IEC 10646:2011.

This module provides a protocol-independent way to use IPv4 and IPv6 sockets, intended as a replacement for IO::Socket::INET.

X11::Protocol is a client-side interface to the X11 Protocol, allowing perl programs to display windows and graphics on X11 servers.

This module allows for anonymous packages that are independent of the main namespace and only available through an object instance, not by name.

This package provides some basic statistics on numerical vectors. All the subroutines can take a reference to the vector to be operated on.

This module lets you attempt to measure, from your operating system's perspective, how much memory a process is using at any given time.

This module inserts values into (translated) strings. It provides printf and sprintf alternatives via both an object-oriented and a functional interface.

Number::Range is an object-oriented interface to test if a number exists in a given range, and to be able to manipulate the range.

This package lets you declare types using short names, but behind the scenes it namespaces all your type declarations, effectively prevent name clashes between packages.

List::Compare provides a module to perform comparative operations on two or more lists. Provided operations include intersections, unions, unique elements, complements and many more.

HTTP::Tinyish is a wrapper module for LWP, HTTP::Tiny, curl and wget.

It provides an API compatible to HTTP::Tiny.

MySQL::Config emulates the load_defaults function from libmysqlclient. It will fill an array with long options, ready to be parsed by Getopt::Long.

This class provides a tie constructor that returns the object it was given as it's first argument. This way side effects of calling $object->TIEHASH are avoided.

The HTTP::Cookies class is for objects that represent a cookie jar, that is, a database of all the HTTP cookies that a given LWP::UserAgent object knows about.

lib::relative module proposes a more straightforward method than adding a path to @INC: take a path relative to the current file, absolutize it, and add it to @INC.

Log::Log4perl lets you remote-control and fine-tune the logging behaviour of your system from the outside. It implements the widely popular (Java-based) Log4j logging package in pure Perl.

This module provides the prove6 command which runs a TAP based test suite and prints a report. The prove6 command is a minimal wrapper around an instance of this module.

This package provides the Crypt::SSLeay Perl module. It implements support for the HTTPS protocol under LWP, so that an LWP::UserAgent can make HTTPS GET, HEAD and POST requests.

File::Basedir can be used to find directories and files as specified by the Freedesktop.org Base Directory Specification. This specifications gives a mechanism to locate directories for configuration, application data and cache data.