Best free AI courses in April 2026

TL;DR: A wide range of AI courses are available to take for free on Udemy. It's difficult to keep up with the world of AI. There's always something new right now, which can leave you feeling like you're drowning. Trying to keep your head above water? Udemy is throwing you a lift raft in the shape of online courses on AI. You can find lessons on chatbots, AI agents, and machine learning. And better yet, a number of the best online AI courses are totally free to take on Udemy. We've checked out everything on offer and lined up a selection of standout courses on AI: AI Art Generation Guide: Create AI Images For Free AI Engineer: The Complete 2026 Skills and Roadmap To AI AI for Beginners: Learn The Basics of ChatGPT AI for Business and Personal Productivity: A Practical Guide AI for Students: Boost Learning & Research with Gen AI AI Fundamentals: From Basics to Generative AI AI in Agriculture: Practical Introductory Course Become an AI-Powered Engineer: Cursor, the AI-First IDE Build AI Agents with n8n: Free Hands-On Training Building Bridges: Intro to Ocean AI and AI Literacy ChatGPT, Midjourney, Firefly, Bard, DALL-E, AI Crash Course How Smart People Use AI to Think, Lead, and Grow