HTML: The basis for laying out the web.

CSS: The basis for styling the web.

JavaScript: Best programming language around! (sorry to all the others...)

React: This library completely changed the way I code. Can't recommend it enough.

Gatsby: Awesome React-based framework! (this site was built with Gatsby 😊)

Python: Has the most beautiful syntax! I love using it for server side coding.

Django: Great framework to create web applications. Very good security features.

MySQL: Database system that uses SQL. Great for projects that use relational databases.

Git: I use it for version control, in conjunction with GitLab and GitHub.

R: Very good language for treatment of scientific and statistical data.

R Shiny: This is a great R package designed to create interactive web apps.

jQuery: Great JS library for DOM manipulation and event handling.

Greensock/GSAP: Super amazing tool to create animations for the web!

Bootstrap: Very complete HTML, CSS, JS framework, but a bit too standard and rigid.