CircuitSimFree
Home / Learn

Learn Electronics Online

Free interactive lessons. Every topic includes a live circuit you can simulate and experiment with directly in your browser.

✨ NEW AI TOOL

AI Circuit Explainer

Describe any circuit — get an instant plain-English explanation of how it works. Free, unlimited, no signup.

Try It Free →
// learning paths
Choose Your Level
Beginner
Electronics Fundamentals
Start here if you're new to electronics. Learn voltage, current, resistance and basic components.
01 Ohm's Law — Voltage, Current & Resistance SIMULATE 02 Resistors in Series and Parallel SIMULATE 03 Voltage Dividers SIMULATE 04 Capacitors and RC Circuits SIMULATE 05 Logic Gates (AND, OR, NOT) SIMULATE
Intermediate
Analog & Active Circuits
Transistors, op-amps, oscillators, and amplifiers. Take your understanding further.
01 Transistor Switch Circuit SIMULATE 02 Op-Amp Amplifier Configurations SIMULATE 03 555 Timer — Astable & Monostable SIMULATE 04 Active Filters SIMULATE 05 Flip-Flops & Counters SIMULATE
Advanced
Power & Digital Systems
Power converters, phase-locked loops, microcontroller interfacing, and more.
01 Buck & Boost Converters SIMULATE 02 Analog-to-Digital Converters SIMULATE 03 Phase-Locked Loops SIMULATE 04 Digital Communication Circuits SIMULATE 05 CMOS Logic Families SIMULATE
// AI TOOL

Don't Understand a Circuit?

Paste any circuit description into our AI Circuit Explainer and get a step-by-step plain-English explanation instantly. Free and unlimited.

Try AI Circuit Explainer →