Learn to Code

JavaScriptQuiz tests JavaScript knowledge through randomized questions.

LeetCode Solutions lists coding solutions in C++23, Java, Python, MySQL, and TypeScript.

TryHackMe offers browser-based cybersecurity learning through hands-on labs and exercises for different skill levels.

For the Scratch platform, Scratch Addons offers a browser extension that brings together add-ons.

The Copetti site publishes detailed articles about the architecture of game consoles and other computing systems.

Awesome Certificates collects more than 200 free courses and over 20,000 hours of learning material.

GitHub Cheat Sheet lists useful features and capabilities of Git and GitHub.

Advent of Code offers programming puzzles and publishes information about its sponsors.

BuidlBox shares news about its acquisition by HackQuest and resources for Web3 development.

GNOME developers can experiment with GNOME technologies and prototype GTK interfaces in the Workbench code playground.

CSS Tip provides CSS learning material and updates on new features and practical ways to use them.

MicroGPT Lab visualizes how a small GPT model tokenizes data, learns patterns, and generates names.

This beginner's guide explains how to get started with capture-the-flag cybersecurity competitions.

This prompt engineering roadmap outlines a step by step learning guide for 2026.

This Korean and English educational web app visualizes and explains a name-generation model inspired by microgpt.

Algorithms Books provides three textbooks by Mykel J. Kochenderfer and coauthors on algorithms and optimization.

Players progress through this JavaScript adventure game by executing code to complete each level.

The Linux Kernel Archives publishes Linux kernel releases with HTTP, Git, and RSYNC access locations, tarballs, patches, and changelogs.

WebAIM provides information and resources about web accessibility for people with disabilities.

The Copenhagen Book offers a free, open-source community guide to implementing authentication in web applications.

First Timers Only helps new contributors find open-source projects and make a first contribution.

Scratch Addons is a browser extension that combines features and themes for the Scratch website.

Memory Spy explains how to inspect memory and what data is present in a running program.

HTML Dog provides step-by-step tutorials and guides for HTML and related web technologies.