Courses from 1000+ universities
AI got cheap enough that Duolingo’s most expensive plan may not survive it. I read the earnings call transcript and opened the app to see what is actually changing for learners.
600 Free Google Certifications
Artificial Intelligence
IT & Networking
Software Engineering
Supporting Victims of Domestic Violence
Know Thyself - The Value and Limits of Self-Knowledge: The Examined Life
Understanding Dementia
Organize and share your learning with Class Central Lists.
View our Lists Showcase
Learn Coding Agents, earn certificates with free online courses from Vanderbilt University and other top universities around the world. Read reviews to decide if a class is right for you.
Master rigorous AI-driven development through agentic workflows, moving beyond "vibe coding" to build deterministic systems with SSH, Tailscale, and real IoT case studies.
Discover how to build coding agents that develop personal taste, learning your unique coding style, preferences, and decision patterns through advanced contextual memory and preference learning.
Discover how to build Railway Autofix, a self-healing infrastructure system using OpenCode coding agents and Inngest for automatic issue detection and PR-based fixes.
Explore advanced design patterns for building autonomous Claude agents on AWS Bedrock that can architect, implement, test, and deploy full applications independently.
Explore real-world prompt injection attacks targeting AI coding agents like OpenAI's Operator and Claude Code, revealing critical vulnerabilities and "ZombAI" exploitation techniques.
Boost your agentic engineering game by mastering Claude Code's basic and advanced features
Describe what you want and AI builds it: create working software, automated workflows and custom tools with agents like Claude Code and OpenAI Codex, without coding.
Build SEO-optimized websites and mobile apps with Replit AI, create images and videos, automate sales with AI agents, and fact-check outputs.
Coding with AI agents from the CLI, using Anthropic's Claude Code. Build an online radio station, ready for production!
Learn to use Claude Code for agentic engineering by customizing projects, using plan mode, creating agent skills, and applying it to data analysis and APIs.
A hands-on introduction to using Claude Code in the terminal, from launching sessions and navigating files to chaining autonomous tools.
Customize Claude Code with persistent project instructions, context controls, settings, safe commands, and error-recovery techniques.
Explore Claude Code’s power-user features, from permission rules and safe Plan Mode refactoring to task subagents and optimized, domain-controlled web access.
Create Claude Skills that automate real workflows and orchestrate multi-skill pipelines with automatic skill selection.
Apply Claude Code to configure an unfamiliar codebase, add API features, and recover from validation and tracking errors.
Get personalized course recommendations, track subjects and courses with reminders, and more.