Number::Format is a library for formatting numbers. Functions are provided for converting numbers to strings in a variety of ways, and to convert strings that contain numbers back into numeric form. The output formats may include thousands separators - characters inserted between each group of three characters counting right to left from the decimal point. The characters used for the decimal point and the thousands separator come from the locale information or can be specified by the user.

Getopt::Tabular is a Perl 5 module for table-driven argument parsing, vaguely inspired by John Ousterhout's Tk_ParseArgv.

While Mouse attributes provide a way to name your accessors, readers, writers, clearers and predicates, MouseX::NativeTraits provides commonly used attribute helper methods for more specific types of data.

Date::Manip is a series of modules for common date/time operations, such as comparing two times, determining a date a given amount of time from another, or parsing international times.

Encode module provides the interface between Perl strings and the rest of the system. Perl strings are sequences of characters.

The Params::Validate module allows you to validate method or function call parameters to an arbitrary level of specificity.

This module provides some XS functions to assist in writing parsers for sub-like syntax, primarily for authors of keyword plugins using the PL_keyword_plugin hook mechanism.

This Digest::Perl::MD5 has the same interface as the much faster Digest::MD5, but it's a pure Perl implementation of MD5. Because of this it is slow but it works without C code.

This module implements an interface to the GNU Readline library. It gives you input line editing facilities, input history management facilities, completion facilities, etc. Term::ReadLine::Gnu is upwards compatible with Term::ReadLine.

Devel::CheckBin is a perl module that checks whether a particular command is available.

Pegex is an Acmeist parser framework. It allows you to easily create parsers that will work equivalently in lots of programming languages. The inspiration for Pegex comes from the parsing engine upon which the postmodern programming language Perl 6 is based on. Pegex brings this beauty to the other justmodern languages that have a normal regular expression engine available.

This module provides three utility subroutines that make it easier to develop interactive applications: is_interactive(), interactive(), and busy().

This package is a Test::Run plugin that colors the summary of the test output.

The functions exported by this module allow you to open URLs in the user's browser. A set of known commands per OS-name is tested for presence, and the first one found is executed. With an optional parameter, all known commands are checked.

Getopt::Long::Descriptive is yet another Getopt library. It's built atop Getopt::Long, and gets a lot of its features, but tries to avoid making you think about its huge array of options. It also provides usage (help) messages, data validation, and a few other useful features.

This module tries to make install path resolution as easy as possible.

Eksblowfish is a variant of the Blowfish cipher, modified to make the key setup very expensive. This doesn't make it significantly cryptographically stronger but is intended to hinder brute-force attacks. Eksblowfish is a parameterised (family-keyed) cipher. It takes a cost parameter that controls how expensive the key scheduling is. It also takes a family key, known as the "salt". Cost and salt parameters together define a cipher family. Within each family, the key determines the encryption function. This distribution also includes an implementation of bcrypt, the Unix crypt() password hashing algorithm based on Eksblowfish.

IO::Pager can be used to locate an available pager and use it to display output if a TTY is in use.

Devel::REPL is a modern Perl interactive shell.

This module provides a general-purpose date and datetime type for perl.

This module fills a gap in Moose by adding method parameter validation to Moose.

This module can retrieve information from the CDDB.

This package provides a set of numeric types to be used in Moo-based classes, adapted from MooseX::Types::Common::Numeric.

DateTime is a class for the representation of date/time combinations. It represents the Gregorian calendar, extended backwards in time before its creation (in 1582).