cloc counts blank lines, comment lines, and physical lines of source code in many programming languages.

Stack trace visualizer

MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stability.

rc file (dotfile) management

LCOV

Node.js version manager

cpanminus - get, unpack, build and install modules from CPAN

Bundler or pip freeze for Perl

Starman is a high-performance preforking Perl PSGI web server

The Elegant MVC Web Application Framework

Comprehensive, language independent Test Suite for YAML

Perl 6 installation manager

Raku ecosystem – modules and more

Lightweight class builder for Perl, as a subset of Moose

a tiny template engine for embedded HTML