Need a good and understandable online/offline simulator of simple electrical circuits (analogue and digital)?

Question

Arduino

Need a simulator to simulate simple electrical circuits (analog and digital), which are presented in the following fairly new books for beginners:
1. Electronics for beginners. Charles Platt.
2. Radio electronics for dummies. McComb, Boysen.
3. Entertaining microelectronics. Yuri Revich
4. Entertaining electronics. Yuri Revich. (2.3 editions).
And in fairly old books:
A.) Fowl. "Electronics step by step"
B.) Atanas and Shishkov. "The first steps in radio electronics"
V.) Borisov. "Young radio amateur"
G.) Electronics for beginners and not only. Bessonov.
D.) Radio engineering. Stallions.
E.) The art of circuitry. Khorovets and Hill.
Do you know such simulators (online or stand alone), but not complex?

Answer 1

One of the simplest Proteus simulators , but it is more focused on working with digital circuits, it can automatically breed boards.
They praise Multisim , but I did not understand it.
The old Electronics Workbench might be good for something.
EasyEDA is a cool online simulator, I found it recently and haven't figured it out yet

Answer 2

In addition to the above, there is a visual simulator everycircuit.com

Answer 3

the simplest and if for visualization and just for yourself: www.falstad.com/circuit/

Answer 4

Qucs - Quite Universal Circuit Simulator
A circuit simulator with graphical user interface (GUI)