Previous thread: >Beginner Roadmap and Overview
github.com
youtube.com
>Free beginner resources to get started
Get a good understanding of HTML, CSS and JavaScript.
developer.mozilla.org
freecodecamp.org - curriculum including HTML/CSS/JS, React, Node.js, Express, and MongoDB
javascript.info - curriculum providing a strong basis in JavaScript
>Further learning resources and documentation
developer.mozilla.org
hackr.io - crowdsourced collection of tutorials from across the web for learning languages and libraries (ignore sponsored stuff, look at upvotes)
learnxinyminutes.com - quick reference sheets for the syntax of many different languages (generally not sufficient on their own for learning something, but very helpful)
pastebin.com
>Asking questions
jsfiddle.net - Use this and post a link, if you need help with your HTML/CSS/JS
3v4l.org