324 Best + Free Engineering Courses & Certificates [2026]

A 112 hour, university style electronics course from Andre LaMothe that goes from the electron to three finished PCB designs, with 4.7 stars from over 19,500 reviews.

Best for: Patient self-learners and embedded programmers who want real circuit theory plus hands-on board building, not a quick PCB tutorial.

A 13-hour, hands-on introduction to ROS 2 Jazzy that teaches every concept in both Python and C++ and ends with a Turtlesim project.

Best for: Programmers with basic Python or C++ who want to learn ROS 2 by writing nodes, not by reading architecture docs.

A short, slide-driven tour of how airplanes fly, from lift and drag to turbofans, taught by a young aerospace engineer and rated 4.4 by about 5,000 students.

Best for: Curious non-specialists and first-year engineering students who want the physics of flight explained in under five hours.

A free 54-minute taster that walks Simulink newcomers through three tiny models, from a sine wave to an if-else block, and holds a 4.6 rating from over 2,100 reviews.

Best for: Engineering students who have never opened Simulink and want to build three small models in under an hour.

A five-hour primer on reliability engineering from a 25-year manufacturing veteran, covering failure analysis, life testing and block diagrams for engineers with no formal training.

Best for: Mechanical, quality or manufacturing engineers who have never had formal reliability training and want the core tools first.

A hands-on first module in a robotics series, where students solder and breadboard analog circuits, then drive a servo from their own muscle signals.

Best for: Beginners who want to solder and breadboard real circuits as step one toward building robots.