myCompiler - Run your favourite programming languages online
Clerk Chat - SMS for Slack
CodeChef IDE - CodeChef IDE is a free online tool for developers helping them in writing codes and programs.
Cato - Instant Spotlight-like search for your web browser.
Online Python - Online Python is a web application where you write codes in python language in the dedicated text space and the shell output is delivered to you in another text box on the right.
Slack App Directory - Your go-to for finding apps that work with Slack