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Proteus Design Suite vs KiCad: catalog facts
Proteus Design Suite	KiCad
Paid Commercial software sold by Labcenter Electronics.	Free Free and open source under the GPL 3.0. Donations are handled through the Linux…
Windows	Windows, macOS, Linux
Simulates microcontroller firmware together with the circuit Schematic capture and PCB layout in one suite	Schematic capture, PCB layout, 3D viewer and Gerber export in one suite No limits on board size, layer count or exports
Commercial licence required Pricing is not listed on the homepage	A real learning curve; the workflow is unlike a drawing program Simulation is basic next to dedicated SPICE packages
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.