Best Free Online Courses with Printable Certificate

Udemy - free courses from 32 languages and printable certificate  

Coursera - Access to over 1500 free online courses with certificates

EDX - Short-term online courses in about 50 categories

Future Learn - Free courses with a digital upgrade and online certifications from top Australian universities 

Harvard University - More than 50 assorted courses free of cost.

Stanford University - Free courses with printable certification from its own website 

Google Digital Garage - Digital marketing, career dev., data, and tech are the main three broad categories.

Skill Share - learn to open a marketplace on Etsy or learn excellent graphic designs for free