A simple interface to access shared memory

http://search.cpan.org/dist/IPC-ShareLite/

IPC::Signal - Utility functions dealing with signals

http://search.cpan.org/dist/IPC-Signal/

Database connection caching and organization

http://search.cpan.org/dist/Ima-DBI/

Perl module for getting image information

http://search.cpan.org/dist/Image-Info/

Sequentially read Image::Magick object from a filehandle

http://search.cpan.org/dist/Image-Magick-Iterator/

Helper functions for PBM/PGM/PPM image file formats

http://search.cpan.org/dist/Image-PBMlib/

Perl5 module to determine the size of images in several common formats

https://metacpan.org/release/Image-Size

Import packages into other packages

http://search.cpan.org/dist/Import-Into/

Perl extension to convert to JSON (JavaScript Object Notation)

http://search.cpan.org/dist/JSON/

Perl Wrapper Class for the various JSON classes

http://search.cpan.org/dist/JSON-Any/

JSON::XS compatible pure-Perl module

http://search.cpan.org/dist/JSON-PP/

Perl implementation of JSON-RPC 1.1 protocol

http://search.cpan.org/dist/JSON-RPC/

JSON serialising/deserialising, done correctly and fast

http://search.cpan.org/dist/JSON-XS/

Perl extension to convert to JSON (JavaScript Object Notation)

http://search.cpan.org/dist/JSON/

Perl extension interface to convert Japanese text

http://search.cpan.org/dist/Jcode/

Guess media type for a file or a URL

http://search.cpan.org/dist/LWP-MediaTypes/

Provide https support for LWP::UserAgent

http://search.cpan.org/dist/LWP-Protocol-https/

Perl module to prevent leakage of lexical hints

http://search.cpan.org/dist/Lexical-SealRequireHints/

Combines List::Util and List::MoreUtils in one bite-sized package

http://search.cpan.org/dist/List-AllUtils/

Perl extension for comparing lists

http://search.cpan.org/dist/List-Compare/

Provide the stuff missing in List::Util

http://search.cpan.org/dist/List-MoreUtils/

Message handling functions

https://metacpan.org/release/gettext

Perl extension to bring loggers and listeners together

http://search.cpan.org/dist/Log-Any/

Log4j implementation for Perl

http://log4perl.sourceforge.net

Perl5 module for Base32 encodings

http://search.cpan.org/dist/MIME-Base32/

Perl5 module for Base64 and Quoted-Printable encodings

http://search.cpan.org/dist/MIME-Base64/

A simple interface for creating (not parsing!) MIME messages

http://search.cpan.org/dist/MIME-Lite/

Set of perl5 modules for MIME

http://www.zeegee.com/code/perl/MIME-tools/

Perl extension for determining MIME types

http://search.cpan.org/dist/MIME-Types/

Store multi-level hash structure in single level tied hash

http://search.cpan.org/dist/MLDBM/

MLDBM::Sync - safe concurrent access to MLDBM databases

http://search.cpan.org/dist/MLDBM-Sync/

Add mro::* interface compatibility for Perls < 5.9.5

http://search.cpan.org/dist/MRO-Compat/

Perl5 module to process and/or create DKIM email

http://jason.long.name/dkimproxy/

Perl implementation of DomainKeys

http://search.cpan.org/dist/Mail-DomainKeys/

Reference implementation of the RFC 4408 SPF protocol

http://www.openspf.org/

Perl module implementing a simple, platform-independent mailer

http://alma.ch/perl/mail.htm#Mail::Sendmail

Perl5 modules for dealing with Internet e-mail messages

http://search.cpan.org/dist/MailTools/

Encoding and decoding of base36 strings

http://search.cpan.org/dist/Math-Base36/

Math::BigInt - Arbitrary size integer math package

http://search.cpan.org/dist/Math-BigInt/

Arbitrary big rational numbers

http://search.cpan.org/dist/Math-BigRat/

Perl interface to the ISAAC PRNG Algorithm

https://metacpan.org/release/Math-Random-ISAAC

C implementation of the ISAAC PRNG Algorithm

https://metacpan.org/release/Math-Random-ISAAC-XS

Perl extension for rounding numbers

http://search.cpan.org/dist/Math-Round/

Build and install Perl modules

http://search.cpan.org/dist/Module-Build/

Lets you find and use modules in categories

http://search.cpan.org/dist/Module-Find/

Loads one of several alternate underlying implementations for a module

http://search.cpan.org/dist/Module-Implementation/

Standalone, extensible Perl module installer

http://search.cpan.org/dist/Module-Install/

Automatically give your module the ability to have plugins

http://search.cpan.org/dist/Module-Pluggable/

Perl module for runtime module handling

http://search.cpan.org/dist/Module-Runtime/

Recursively scan Perl code for dependencies

http://search.cpan.org/dist/Module-ScanDeps/