Free Online FPGA simulator.

Just like the Online html.css.js editor and test environments,  I found one for FPGA hardware development

 https://www.edaplayground.com/

LEARN FPGA FAST WITH HACKADAY’S FPGA BOOT CAMP

https://hackaday.io/project/159720-fpga-bootcamp-0

https://hackaday.io/project/159191-fpga-bootcamp-1

https://hackaday.io/project/159216-fpga-bootcamp-2

https://hackaday.io/project/159692-fpga-bootcamp-3