Taskade - Make lists, organize your thoughts, and be inspired to get things done. Taskade is a collaborative space for your tasks.

rubular - A ruby based regular expression editor

Meetings Are Dead - People spend most of their time on meetings, where they are not needed, being unproductive.With MAD(Meetings Are Dead) you can assign real tasks and problems to relevant people, while others can continue their work.

RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.

Riter - Project management & team collaboration tool

RegEx Generator - RegEx Generator is a simple-to-use application that comes with the brilliance of intuitive regex and is also helping you out to test the regex.