KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
Arcade - Create effortlessly beautiful demos -- in minutes.
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
Demostack - The no-code product demo experience platform
QUCS - Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.
Storylane.io - Storylane helps companies build and share interactive product demos with their prospects in 10 mins. Guided experiences can be built code-less and helps convert customers faster.