Options.pm is a command-line option-parsing Perl module meant to imitate the syntax of the t.p.usage.Options module from the Twisted Python library. It will allow you to specify which options to look for on the command line, and supports both long and short versions of simple flags and parameters. If a required parameter is unspecified, Options.pm will print nicely formatted usage information with the error.
JSON::DWIW is a Perl module that converts Perl data structures to and from JSON. It does what most Perl programmers would expect without having to set any extra options. For example, it converts objects to their underlying data structures (for hash or array) and turns IO objects into strings. It is also faster than the JSON or JSON::Syck modules on CPAN in the developer's tests.
JSON::XS implements JSON for Perl. Unlike other modules, its primary goal is to encode to syntactically correct JSON and flag invalid JSON while decoding. It ensures round-trip integrity of data types while being intuitive to use. Currently being the fastest of the JSON encoders available for Perl, it supports a variety of format options, such as single-line, ASCII-only, or pretty-printed, and can be tuned for speed or memory usage. It comes with a wealth of documentation describing usage and implementation details.
trillbox is a flexible and extendable toolkit for building dynamic Web pages. Written in Perl and based on Template::Recall, it provides "widgets" (or controls) that you can quickly integrate into your Perl Web application. trillbox widgets are designed to be independent points of control that can be easily plugged into a Web programming system, e.g. a CGI application, template-based, or included as part of an application framework. Widgets purposely have no direct knowledge of each other in order to offer the greatest flexibility (although they may be designed so that output and input can be piped between widgets).