A simple SHA-256 / SHA-224 hash function for JavaScript supports UTF-8 encoding.

freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

A complete computer science study plan to become a software engineer.

Algorithms and Data Structures implemented in Go for beginners, following best practices.

All Algorithms implemented in Python

A collection of (mostly) technical things every software developer should know about

A collective list of free APIs

💯 Curated coding interview preparation materials for busy software engineers

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

📚 Freely available programming books

All Algorithms implemented in Java

The Algorithms website providing GitHub's largest open-source algorithm library.

Algorithms and Data Structures implemented in JavaScript for beginners, following best practices.

Popular algorithms explained in simple language with examples and links to their implementation in various programming languages and other required resources.

Master programming by recreating your favorite technologies from scratch.

P6Spy is a framework that enables database data to be seamlessly intercepted and logged with no code changes to the application.

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

Script engine to compile and execute scripts written in Java at runtime (JSR-223 compatible)

🚨 Collection of Prometheus alerting rules