The easiest to start with is EasyEda, which can be run as a web application, or you can download it as a stand alone application.
There is a youtube channel with lots of tutorials.
You can design a board in EasyEda and upload directly to jlcpcb for manufacture.
EasyEDA - Online PCB design & circuit simulator
EasyEDA is a free and easy to use circuit design, circuit simulator and pcb design that runs in your web browser.
easyeda.com
There is a youtube channel with lots of tutorials.
You can design a board in EasyEda and upload directly to jlcpcb for manufacture.