Multisim
LTspice
QUCS
EasyEDA
Proteus PCB design
KiCad
Pspice
Altium Designer
FlowBite
Tailwind UI
DaisyUI
Float UI
Tailwind CSS
TailGrids
Preline UI
Keep Design System
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
Tailwind UI - Beautiful UI components by the creators of Tailwind CSS.
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.
DaisyUI - Free UI components plugin for Tailwind CSS
EasyEDA - EasyEDA - Web-based EDA suite; runs in browser.
Float UI - Beautiful and responsive UI components and templates for React and Vue with Tailwind CSS.