more attractive

• Data::Dumper can be tweaked to be slightly more attractive

  $Data::Dumper::Quotekeys = 0;
  $Data::Dumper::Sortkeys  = 1;
  

• Data::Dumper::Perltidy
• "sensible defaults"
  • Data::Dumper::Concise
  • Data::Dumper::Concise::Aligned

sub deparsing

• Data::Dumper supports it directly, once you enable $Data::Dumper::Deparse

show variable name

• Data::Dumper::Simple
• Data::Dumper::Names

unicode-compatible

• Data::Dumper::AutoEncode

various other features

• Data::PrettyPrintObjects (2010)

generates color ANSI sequences

• Data::Printer
• Data::Dump::Color

generates HTML

• Data::HTML::TreeDumper
• Data::Printer + HTML::FromANSI::Tiny
• Data::Format::Pretty::HTML
• Data::Dump::HTML::Collapsible
• Data::Dump::HTML::PopUp
• Data::Dumper::HTML (2006)
• Data::HTML::TreeDumper
• Data::HTMLDumper
• HTML::Display::Dump
• HTML::EP::Session::Dumper
• HTML::Index::Store::DataDumper
• HTML::Template::Dumper

complete re-implementations of Data::Dumper, even if they have only minor functionality changes

• Data::Dmp
• Data::Dump
• Data::Dump::Streamer
• Data::Printer

significantly enhanced, compared to Data::Dumper

• Data::Printer — colorful, and lots of enhancements
  • "Lets you inspect information that's otherwise difficult to find/debug like ... overloaded operators, tainted data, ties, dual vars."
  • "Filters for specific data structures and objects to make debugging much, much easier. Includes filters for many popular classes from CPAN like JSON::*, URI, HTTP::*, LWP, Digest::*, DBI and DBIx::Class."
• Data::Dump::Streamer