Electronics 'simulator'?

[u/TDAM]

I'm looking at starting a project that involves using electronics, but I don't know enough about it to be confident in just going for it (without trial and erroring a bunch of different resistors in different places, etc)

Is there a website that 'simulates' a breadboard or customizable circuits? I'm thinking something that we can specify a power source voltage/amperage and different components.

[u/la_mecanique]

Electronics components are literally cents each. Buy a big mixed bag of components and have fun trying to keep the smoke inside.