Circuit Diagram

A free, user-friendly program for making electronic circuit diagrams.

About

Circuit Diagram enables you to make electronic circuit diagrams and allows them to be exported as images. I originally created Circuit Diagram to help me with my electronics A-level coursework, and have continued to add new components and features since then.

Screenshot

Features

Design your electrical circuit and then export it as:

  • PNG - best compatibility
  • SVG - no loss of quality when scaling

Supported Electronic Components

  • Analogue switch
  • AND Gate
  • Capacitor (standard, variable, trimmer, polarised)
  • Counter
  • Crystal
  • D Flip-Flop
  • Diode (standard, LED, photo, diode bridge)
  • External Connection
  • Fuse
  • Ground
  • Inductor
  • Label
  • Lamp
  • Light dependent resistor
  • Loudspeaker
  • Meter
  • Microcontroller
  • Microphone
  • MOSFET (N-Channel and P-Channel)
  • NAND Gate
  • NOR Gate
  • NOT Gate
  • Op-Amp
  • OR Gate
  • Potentiometer
  • Rail
  • Resistor
  • Schmitt Trigger NOT Gate
  • Seg Decoder
  • Seg Display
  • Supply
  • Switch (push, toggle, push-to-break, changeover)
  • Thermistor
  • Transformer
  • Transistor (NPN and PNP)
  • Variable Resistor
  • Wire
  • XOR Gate