Good circuit simulation softwares- Any suggestions?

Here are some of the best circuit simulation software(online and free):

• Tinkercad
• Falstad
• Simulator.io
• Circuit.io
• Circuit-Cloud
• PartSim
• Docircuits
• EasyEDA
• CircuitLab
• CircuitSim
• Everycircuit

You can try these on your browser without downloading anything. I personally like TinkerCad for Arduino and Falstad for analog/digital circuit simulation.

If you are looking for circuit simulation software to download(paid and free), here is the list:

• NI MultiSim
• Autodesk Eagle
• LTspice
• PSIM
• EasyEDA
• KiCAD
• CEDAR Logic Simulator
• Tina TI
• idealCircuit
• Proteus

Proteus by Labcenter is the best of the best. You can do anything using it. I once simulated an 8-bit computer using register ICs etc.

Found a good video on this topic:

If you're looking for free simulation software, I’d recommend LTspice; however, it lacks built-in Arduino support. For a professional option, OrCAD and Proteus are great choices. There are also many other options available at a moderate budget that you could try.

The best choice of software depends on your specific needs. Consider factors such as the complexity of your circuits, your experience level, and whether you require free or commercial options. here is my top Circuit Simulation Software recommendations choose accordingly.

1. LTspice
   Widely recognized for its robust simulation capabilities, particularly in analog circuits and power electronics. LTspice is a go-to for professionals due to its accuracy and speed. Best of all, it's free, with a large community providing models and support.

2. Proteus
   A versatile software supporting both analog and digital circuit simulations. It's particularly noted for its comprehensive microcontroller simulation, including Arduino and PIC. Although paid, Proteus is a solid investment for those working with embedded systems.

3. Tinkercad
   While it's a free, browser-based tool, Tinkercad offers an intuitive interface for beginners. It's excellent for simulating basic circuits and includes Arduino support, making it ideal for rapid prototyping and educational purposes.

4. Multisim
   Known for its advanced simulation capabilities across analog, digital, and mixed-signal circuits. Multisim is used extensively in both academic and professional settings. It offers a broad range of components and analysis tools but comes with a cost.

LTspice is good, but for fast real-time simulation, go with Falstad.

LTspice is a popular free tool, though its library of component models is somewhat limited (additional models can be added). For a more advanced and professional solution, OrCAD PSpice offers extensive features and is ideal for long-term projects.

I can share my personal favorite, which is Proteus. It’s great because it supports both analog and digital circuits and has built-in support for Arduino simulation. I’ve used it quite a bit for embedded system projects, and being able to upload real Arduino code (hex files or even source) and see how the microcontroller interacts with the rest of the circuit is incredibly helpful.

The interface is fairly user-friendly once you get the hang of it, and the component library is extensive. What I also like is that it includes PCB layout capabilities, so you can go from simulation to PCB design in the same environment. It’s a paid tool, but they offer student versions or lower-cost licenses that are perfect if you’re not working on commercial-scale projects.

If you're looking for something free, Tinkercad Circuits is another solid option for beginners. It supports Arduino quite well and is completely browser-based, though it's not as advanced for analog simulation or PCB design.