A free, hands-on learning platform for web application security featuring structured lessons and interactive labs covering vulnerabilities such as SQL injection, XSS, authentication flaws, and access control issues.

A comprehensive guide to Git covering version control fundamentals, branching, merging, remotes, Git internals, workflows, and advanced techniques for managing software projects.

A collection of mathematical programming problems designed to develop problem-solving skills by combining mathematical reasoning with algorithmic programming.

A practical online book that teaches the fundamentals of ray tracing by guiding learners through building a simple 3D renderer from scratch.

Ruby's official learning and documentation hub, providing guides, language documentation, tutorials, and resources for learning Ruby and building applications with the language.

Runnable Rust examples that introduce language features and standard library functionality through concise programs that learners can read, modify, and execute themselves.

Small, hands-on Rust exercises designed to reinforce language fundamentals by having learners identify errors, modify code, and complete progressively more challenging programming tasks.

Interactive programming courses where learners watch lessons and edit code directly in the browser, with free material covering web development, JavaScript, React, and related technologies.

A browser-based platform where developers and artists create, share, explore, and experiment with real-time procedural graphics and GLSL shaders.

Practical tutorials from the Spring team demonstrating how to build Java applications with Spring and Spring Boot, covering web applications, REST APIs, data access, security, and other common application patterns.

Browser-based SQL lessons and exercises that introduce queries, filtering, sorting, joins, aggregations, and other fundamental database operations through immediate practice.

A guide to system design concepts covering scalable architectures, distributed systems, databases, networking, reliability, and large-scale software design.

An open-source guide covering system design concepts, distributed systems, scalability, databases, networking, and architectures for large-scale software.

A curated self-study roadmap covering core computer science subjects such as algorithms, data structures, computer architecture, operating systems, networking, databases, and distributed systems.

A free, open-source collection of structured interview preparation material covering algorithms, data structures, coding techniques, behavioral interviews, and software engineering preparation.

Learning resources from the TensorFlow project covering machine learning fundamentals, model development, computer vision, NLP, and deploying TensorFlow applications.

A practical book that teaches test-driven development by building a web application with Python and Django, emphasizing testing, development workflows, and incremental implementation.

An interactive introduction to fragment shaders and GLSL that teaches graphics programming through visual examples, mathematical concepts, and hands-on shader experiments.

A comprehensive introduction to working with Linux through the command line, progressing from basic shell usage to scripting, file management, processes, networking, and system administration.

A structured, project-based curriculum for learning web development through HTML, CSS, JavaScript, Git, databases, and backend development, with extensive hands-on projects.

A comprehensive introduction to Rust covering ownership, borrowing, structs, enums, generics, error handling, concurrency, collections, and other core concepts through progressively deeper chapters.

Browser-based cybersecurity rooms combining guided lessons with practical challenges covering topics such as networking, Linux, web security, and penetration testing.

Interactive visualizations and animations that make data structures and algorithms easier to understand through exploration and step-by-step demonstrations.

A practical tutorial series for learning Vulkan and modern graphics programming, covering initialization, rendering, memory management, synchronization, and related concepts.

Beginner-friendly tutorials and references covering web technologies, programming languages, databases, and other development topics through concise explanations and interactive examples.