Tom J Nowell

An easy way of telling apart different installs of WordPress ( e.g. live/production/local ) via the admin bar. Super admins see a colour coded machine name in the admin bar, with an IP submenu. Mobiles will see a colour coded square dot

Local Indicator

A fast way of seeing which machine a WordPress install is running on.

Automattic

Daniel Bachhuber

Alex Mills

Mohammad Jangda

Nikolay Bachiyski

Josh Betz

Thorsten Ott

nickdaugherty

Prasath Nadarajah

A plugin, which helps WordPress developers develop.
This plugin will help you optimize your development environment by making sure that you have all the essential tools and plugins installed.
If you’d like to check out the code and contribute, <a href="https://github.com/Automattic/developer" rel="nofollow ugc">join us on GitHub</a>. Pull requests, issues, and plugin recommendations are more than welcome!
We would like to thank Ejner Galaz for letting us use the <code>developer</code> slug in the WordPress.org plugin repository.

Developer

A plugin, which helps WordPress developers develop.

Local Indicator vs Developer