The best free AI courses and certificates for upskilling in 2026 - and I've tried them all

I've worked with AI for decades and have a master's degree in education. Here are the top free AI courses online that I recommend - and why.
IEEE

Green Cell-Free Massive MIMO: An Optimization Embedded Deep Reinforcement Learning Approach

Abstract: Cell-free massive multiple-input multiple-output (MIMO) deploys a large number of distributed access points (APs) without cell edges, offering seamless connectivity with significantly ...

American Airlines partners with AT&T to launch free in-flight Wi-Fi

American Airlines is joining its biggest competitors in offering free Wi-Fi. Learn how you can access the amenity and how it ...
techxplore

Reinforcement learning accelerates model-free training of optical AI systems

Optical computing has emerged as a powerful approach for high-speed and energy-efficient information processing. Diffractive optical networks, in particular, enable large-scale parallel computation ...
archive

Learning Tableau 10 : business intelligence and data visualization that brings your business into focus

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...
GitHub

QJS - JavaScript in Go with QuickJS and Wazero

QJS is a CGO-Free, modern, secure JavaScript runtime for Go applications, built on the powerful QuickJS engine and Wazero WebAssembly runtime. QJS allows you to run JavaScript code safely and ...
IEEE

Low-Latency and Energy-Efficient Federated Learning Over Cell-Free Networks: A Trade-Off Analysis

Abstract: Federated learning (FL) enables distributed model training by exchanging models rather than raw data, preserving privacy and reducing communication overhead. However, as the number of FL ...