UnDraw

Open-Source, Free, Themable Illustrations. The best alternative to stock images.

Visual Studio Code

Open source, cross platform code editor, designed with web development in mind. Comes with Intellisense and integrated Git Control. Ready to use out of the box, no need to install tons of 3rd party extensions, like with Atom.

Hyper

A cross platform terminal built on top of React.js. Open source, customisable and even Inspectable.

Google Fonts

Customisable, blazing fast web fonts.

UpLabs

My favourite place to find design inspiration.

Android Asset Studio

Awesome Material Design Android Assets, mostly icons.

Slack

Best for team programming assignments, managing tasks and many more.