1. roadmap.sh
This is the 6th most starred project on all of GitHub, with 357K stars and 2.8 million registered users. That alone tells you people trust it.
Here's what it does: you pick a path (frontend, backend, AI engineer, DevOps, whatever) and it hands you the exact skill tree to learn, in the right order. No more guessing what to study next or drowning in random tutorials.
Start here if you've ever opened ten tabs trying to figure out where to even begin.
Link: https://roadmap.sh
2. web.dev
This one is run by Google's own Chrome team, and it's completely free.
You get full courses on HTML, CSS, JavaScript, performance, and accessibility, written by the people who actually build the browser. If Google writes the rules for how the web works, this is basically them handing you the answer key.
Start here if you want to build websites the right way instead of copy pasting from random forums.
Link: https://web.dev
A visual book that finally shows you how software actually works under the hood.
It walks you through pixels, fonts, compression, encryption, how the internet works, and even neural nets, all drawn out so the concepts click instead of going over your head. It's made by Dan Hollick.
This one is a paid one time purchase, but it's yours forever with all future updates. Worth it if you've always wanted to understand what's really happening inside your machine.
4. ncase.me
Nicky Case turns hard ideas into little games you play instead of read.
Game theory, trust, anxiety, big abstract concepts become things you click through and actually feel. You learn by doing, not by skimming a wall of text.
And the best part: every single thing on the site is free and public domain. You can reuse it, remix it, or teach with it, no strings attached.
Link: https://ncase.me
5. explorabl.es
Think of this as a hub for the same idea as Nicky Case, but across dozens of topics from different makers.
These are interactive lessons where you drag sliders, run simulations, and watch a concept move in front of you. It's built by a loose group of coders and educators who think learning shouldn't be boring.
All free. Great for when you want to understand something deeply instead of just memorizing it.
Link: https://explorabl.es
Complex money, markets, and world data turned into charts you actually understand.
One good infographic does what a wall of numbers never could. They cover the economy, AI adoption, energy, demographics, and pretty much anything you can rank or map. Over 375,000 people read their breakdowns.
Most of it is free. Start here if you want to actually get what's happening in the world instead of nodding along.
An AI buddy that lives on your Mac and can see your whole screen.
Ask it a question out loud and it walks you through whatever you're working on, Figma, FL Studio, After Effects, anything. Say "clicky agent" and it goes off and builds, researches, or handles a task for you in the background. It's made by Farza.
It's Mac only right now, with a Windows waitlist open. Start here if you learn best by having someone (or something) walk you through it live.
Almost all of this is free. The games and roadmaps are community built or public domain. There's no paywall standing between you and actually getting better.
The only thing missing is you opening one of these tabs today.
By The AI Leverage - Learn and master AI daily