Devel::CheckCompiler is a tiny module to check whether a compiler is available. It can test for a C99 compiler, or you can tell it to compile a C source file with optional linker flags.

Manipulating stashes (Perl's symbol tables) is occasionally necessary, but incredibly messy, and easy to get wrong. This module hides all of that behind a simple API.

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

This module tries to find middle ground between one at a time and all at once processing of data sets. The purpose of this module is to avoid the overhead of implementing an iterative api when this isn't necessary, without breaking forward compatibility in case that becomes necessary later on.

Data::Dumper::Concise provides a dumper with Less indentation and newlines plus sub deparsing.

The Cache modules are designed to assist a developer in persisting data for a specified period of time. Often these modules are used in web applications to store data locally to save repeated and redundant expensive calls to remote machines or databases. People have also been known to use Cache::Cache for its straightforward interface in sharing data between runs of an application or invocations of a CGI-style script or simply as an easy to use abstraction of the file system or shared memory.

POSIX::strftime::Compiler provides GNU C library compatible strftime(3). But this module is not affected by the system locale. This feature is useful when you want to write loggers, servers, and portable applications.

This module provides a Perl interface to the iconv() codeset conversion function, as defined by the Single UNIX Specification. For more details see the POD documentation embedded in the file Iconv.pm, which will also be installed as Text::Iconv(3) man page.

These self-contained Perl modules provide cryptography based on the LibTomCrypt library.

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

CPAN::Changes helps users programmatically read and write Changes files that conform to a common specification.

Indirect warns about using the indirect method call syntax.

Simply loading this module makes your constructors "strict". If your constructor is called with an attribute init argument that your class does not declare, then it calls Moose->throw_error().

This package provides Digest::SHA1, an implementation of the NIST SHA-1 message digest algorithm for use by Perl programs.

Term::ANSIColor provides constants and simple functions for setting ANSI text attributes, most notably colors. It can be used to set the current text attributes or to apply a set of attributes to a string and reset the current text attributes at the end of that string. Eight-color, sixteen-color, 256-color, and true color (24-bit color) escape sequences are all supported.

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.

Exception::Class allows you to declare exception hierarchies in your modules in a "Java-esque" manner.

perlcritic is a Perl source code analyzer. It is the executable front-end to the Perl::Critic engine, which attempts to identify awkward, hard to read, error-prone, or unconventional constructs in your code. Most of the rules are based on Damian Conway's book "Perl Best Practices". However, perlcritic is not limited to enforcing PBP, and it will even support rules that contradict Conway. All rules can easily be configured or disabled to your liking.

Crypt::PasswdMD5 provides various crypt()-compatible interfaces to the MD5-based crypt() function found in various *nixes. It is based on the implementation found on FreeBSD 2.2.[56]-RELEASE.

Internationalized Domain Names (IDNs) use characters drawn from a large repertoire (Unicode), but IDNA allows the non-ASCII characters to be represented using only the ASCII characters already allowed in so-called host names today (letter-digit-hyphen, /[A-Z0-9-]/i).

Use this module if you just want to convert domain names (or email addresses), using whatever IDNA standard is the best choice at the moment.

Time::Duration::Parse is a module to parse human readable duration strings like "2 minutes" and "3 seconds" to seconds.

This Perl module facilitates the creation and modification of PDF files.

This package allows you to make the file verdict (i.e., ok, NOT OK) colorful in test outputs.

This package provides an efficient mechanism to look up ranges in Interval Trees.