Module::Manifest is a simple utility module created originally for use in Module::Inspector.

It can load a MANIFEST file that comes in a Perl distribution tarball, examine the contents, and perform some simple tasks. It can also load the MANIFEST.SKIP file and check that.

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

Devel::StackTrace::AsHTML adds as_html method to Devel::StackTrace which displays the stack trace in beautiful HTML, with code snippet context and function parameters. If you call it on an instance of Devel::StackTrace::WithLexicals, you even get to see the lexical variables of each stack frame.

Text::Aligner exports a single function, align(), which is used to justify strings to various alignment styles.

A pure Perl implementation of the RC4 algorithm.

String eval is often used for dynamic code generation. For instance, Moose uses it heavily, to generate inlined versions of accessors and constructors, which speeds code up at runtime by a significant amount. String eval is not without its issues however - it's difficult to control the scope it's used in (which determines which variables are in scope inside the eval), and it's easy to miss compilation errors, since eval catches them and sticks them in $@ instead. This module attempts to solve these problems. It provides an eval_closure function, which evals a string in a clean environment, other than a fixed list of specified variables. Compilation errors are rethrown automatically.

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 first checks to see if either Cpanel::JSON::XS or JSON::XS is already loaded, in which case it uses that module. Otherwise it tries to load Cpanel::JSON::XS, then JSON::XS, then JSON::PP in order, and either uses the first module it finds or throws an error.

This module is intended to easily load initialization values for attributes on object construction from an appropriate config file. The building is done in MooX::ConfigFromFile::Role---using MooX::ConfigFromFile ensures that the role is applied.

Data::Entropy provides modules relating to the generation and use of entropy. The Data::Entropy::Source class manages the entropy coming from a particular source. This class acts as a layer over a raw entropy source, which may be a normal I/O handle or a special-purpose class. The Data::Entropy::RawSource::* classes provide fundamental sources of entropy. The sources specially supported are an OS-supplied entropy collector, downloads from servers on the Internet, and cryptographic fake entropy. The Data::Entropy::Algorithms module contains a collection of fundamental algorithms that use entropy. There are random number generators and functions to shuffle arrays.

Perl module for using special zip files (called Perl ARchives) as libraries from which Perl modules can be loaded.

This module provides a file handle that hides the beginning of a file, by modifying the seek() and tell() calls.

This class lets you build groups of accessors that will call different getters and setters.

This module provides basic Boolean support, by defining two special objects: true and false.

This package provides Digest::SHA3, an implementation of the NIST SHA-3 message digest algorithm for use by Perl programs.

Sys::Hostname::Long tries very hard to get the full hostname of a system.

This module is a helper for installing, reading and finding configuration file locations. File::ConfigDir is a module to help out when Perl modules (especially applications) need to read and store configuration files from more than one location.

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

Meta::Builder is designed to be a generic tool for writing Meta objects. Unlike specialized tools, Meta::Builder makes no assumptions about what metrics you will care about. Meta::Builder also makes it simple for others to extend your meta-object based tools by providing hooks for other packages to add metrics to your meta object.

DateTime::Format::Natural takes a string with a human readable date/time and creates a machine readable one by applying natural parsing logic.

Devel::GlobalDestruction provides a function returning the equivalent of "${^GLOBAL_PHASE} eq 'DESTRUCT'" for older perls.

XString provides the B string helpers in one isolated package. Right now only cstring and perlstring are available.

This subclass of Module::Build adds some tools and processes to make it easier to use for wrapping C++ using XS++ (ExtUtils::XSpp).

This package provides procedures to get and set resource limits like getrlimit and setpriority.