Free Online Easy PCB layout EDA software is KiCad EDA

How easy to generate Gerber and Drill files in KiCad for JLCPCB?

Free open source EDA for Schematic Capture and  PCB Layout with Gerber output, also has an active KiCad community offers guides, tutorials, libraries, and scripts for inexperienced or professional users

Online CAD software can run on Windows, Linux, and macOS and is licensed under GNU GPL v3 without restriction on PCB layer, PCB size, PCB purpose, or PCB manufacturing

Easy and advanced interactive routing, length matching, differential routing for professional user

Fast to update in terms of user interface, schematic editor, and the electrical rules checker to create bill of materials, artwork, Gerber files ect.