Safely and cleanly create closures via string eval

https://metacpan.org/release/Eval-Closure

A module that allows you to declare real exception classes in Perl

http://search.cpan.org/dist/Exception-Class/

Exporter with features of Sub::Exporter but only core dependencies

https://metacpan.org/release/Exporter-Tiny

Compile and link C code for Perl modules

https://metacpan.org/release/ExtUtils-CBuilder

Easily build XS extensions that depend on XS extensions

http://search.cpan.org/dist/ExtUtils-Depends/

Designed to write a Makefile for an extension module

http://search.cpan.org/dist/ExtUtils-MakeMaker/

Converts Perl XS code into C code

https://metacpan.org/release/ExtUtils-ParseXS

Modules for perl5, for enabling FastCGI support in CGI scripts

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

Perl extension for recursively copying files and directories

http://search.cpan.org/dist/File-Copy-Recursive/

Alternative interface to File::Find

https://metacpan.org/release/File-Find-Rule

Get home directory for self or other users

http://search.cpan.org/dist/File-HomeDir/

Parse directory listings

http://search.cpan.org/dist/File-Listing/

File::NFSLock - perl module to do NFS (or not) locking

http://search.cpan.org/dist/File-NFSLock/

Perl5 module to easily removes files and directories

http://search.cpan.org/dist/File-Remove/

Locate per-dist and per-module shared files

http://search.cpan.org/dist/File-ShareDir/

Install read-only data files from a distribution

http://search.cpan.org/dist/File-ShareDir-Install/

Perl Module to read the end of a file as it\x27s appended to

http://search.cpan.org/dist/File-Tail/

Perl5 module to generate temporary files or directories safely

http://search.cpan.org/dist/File-Temp/

Portable implementation of which(1) in Perl

http://search.cpan.org/dist/File-Which/

Perl extension for simple and dumb file system watcher

http://search.cpan.org/dist/Filesys-Notify-Simple/

Number of source filters for perl5 programs

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

Module for converting Perl structures to strings and back

Perl5 interface to Gd Graphics Library version2

http://stein.cshl.org/WWW/software/GD/

Graph plotting module for perl5

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

Text utilities for use with GD drawing package

Perl extension providing access to the GSSAPIv2 library

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

Gets country name by IP or hostname

http://search.cpan.org/dist/Geo-IP/

Handle ISO-3166 country codes

http://search.cpan.org/dist/Geography-Countries/

Perl module for processing argument vectors

https://metacpan.org/release/Getopt-ArgvFile

Perl module for extended processing of command line options

Graph, the Perl module for graph operations

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

GraphViz - Perl interface to the GraphViz graphing tool

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

Module to produce HTML 'breadcrumb trails'

http://search.cpan.org/dist/HTML-Breadcrumbs/

Determine the encoding of HTML/XML/XHTML documents

http://search.cpan.org/dist/HTML-Encoding/

High-performance, dynamic web site authoring system

http://search.cpan.org/dist/HTML-Mason/

Perl module for handling CGI HTML paging of arbitrary data

http://search.cpan.org/dist/HTML-Pager/

Perl5 module for parsing HTML documents

http://search.cpan.org/dist/HTML-Parser/

Perl extension for scrubbing/sanitizing html

http://search.cpan.org/dist/HTML-Scrubber/

Perl5 module for strip HTML tag

http://search.cpan.org/dist/HTML-Strip/

Generate HTML tables for CGI scripts

http://www.chime.ucl.ac.uk/~rmhiajp/htmltable/index.htm

Some useful data table in parsing HTML

http://search.cpan.org/dist/HTML-Tagset/

Perl module to use HTML Templates from CGI scripts

http://sourceforge.net/projects/html-template/

Web validation in a Perl object using tidy

http://search.cpan.org/dist/HTML-Tidy/

Collection of modules to manupulate HTML syntax trees

http://search.cpan.org/dist/HTML-Tree/

HTTP Body Parser

http://search.cpan.org/dist/HTTP-Body/

HTTP Cookie jars

http://search.cpan.org/dist/HTTP-Cookies/

WebDAV client library

http://search.cpan.org/dist/HTTP-DAV/

Simple HTTP server class

http://search.cpan.org/dist/HTTP-Daemon/

Conversion routines for the HTTP protocol date formats

http://search.cpan.org/dist/HTTP-Date/

Representation of HTTP style messages

http://search.cpan.org/dist/HTTP-Message/