Authen::DecHpwd implements the SYS$HASH_PASSWORD password hashing function from VMS (also known as LGI$HPWD) and some associated VMS username and password handling functions. The password hashing function is implemented in XS with a pure Perl backup version for systems that cannot handle XS.

This module makes the functionality of the perltidy command available to Perl scripts. Any or all of the input parameters may be omitted, in which case the @ARGV array will be used to provide input parameters as described in the perltidy(1) man page.

This module packages several Moose::Util::TypeConstraints with coercions, designed to work with the DateTime suite of objects.

RFCs 2822 and 822 specify date formats to be used by email. This module parses and emits such dates.

The Term::Animation Perl module provides a framework to produce sprite animations using ASCII art. Each ASCII 'sprite' is given one or more frames, and placed into the animation as an 'animation entity'. An animation entity can have a callback routine that controls the position and frame of the entity. The module can also do collision detection between entities.

Mail::RFC822::Address validates email addresses against the grammar described in RFC 822 using regular expressions.

Config::Any provides a facility for Perl applications and libraries to load configuration data from multiple different file formats. It supports XML, YAML, JSON, Apache-style configuration, and Perl code.

File::Find::Rule::Perl provides methods for finding various types Perl-related files, or replicating search queries run on a distribution in various parts of the CPAN ecosystem.

This package provides basic statistics functions like median(), mean(), variance() and stddev().

This class provides several methods for host name resolution. It is designed to be used with event loops. Names are resolved by your system's native getaddrinfo(3) implementation, called in a separate thread to avoid blocking the entire application. Threading overhead is limited by using system threads instead of Perl threads.

This module can serve as a transparent interface to any TIEHASH package that is required to store arbitrary perl data, including nested references. Thus, this module can be used for storing references and other arbitrary data within DBM databases.

This package enables you to do generic message logging throughout programs and projects. Every message will be logged with stacktraces, timestamps and so on. You can use built-in handlers immediately, or after the fact when you inspect the error stack. It is highly configurable and lets you even provide your own handlers for dealing with messages.

Mozilla::CA provides a copy of Mozilla's bundle of Certificate Authority certificates in a form that can be consumed by modules and libraries based on OpenSSL.

Sub::Exporter is an incredibly powerful module, but with that power comes great responsibility, as well as some runtime penalties. This module is a "Sub::Exporter" wrapper that will let your users just use Exporter if all they are doing is picking exports, but use "Sub::Exporter" if your users try to use "Sub::Exporter"'s more advanced features, like renaming exports, if they try to use them.

BinHex is a format for transporting files safely through electronic mail, as short-lined, 7-bit, semi-compressed data streams. This module provides a means of converting those data streams back into into binary data.

Display Perl variables and objects on screen, properly formatted (to be inspected by a human).

Exporter::Declare is a meta-driven exporting tool. It tries to adopt all the good features of other exporting tools, while replacing bad interfaces. Exporter::Declare also provides hooks that allow you to add options and arguments for import. Exporter::Declare's meta-driven system allows for top-notch introspection.

This package provides a data pack for Business::ISBN. These data are generated from the RangeMessage.xml file provided by the ISBN Agency.

PadWalker is a module which allows you to inspect (and even change) lexical variables in any subroutine which called you. It will only show those variables which are in scope at the point of the call. PadWalker is particularly useful for debugging.

Exporter::Lite is an alternative to Exporter, intended to provide a lightweight subset of the most commonly-used functionality. It supports import(), @EXPORT and @EXPORT_OK and not a whole lot else.

This module provides a flexible calling interface to some frequently-performed string conversion functions, including applying and expanding standard C/Unix-style backslash escapes like and , wrapping and removing double-quotes, and truncating to fit within a desired length.

This module offers a minimalist class construction kit. It uses no non-core modules for any recent Perl.

This module provides a basic way to discover if a piece of perl code is allocating perl data and not releasing them again.

This module provides a class to monitor a directory for changes made to any file.