Diagram symbols

What each symbol means, in plain words. Every symbol downloads as SVG, and each set comes as a free draw.io library.

Electrical symbols

68 symbols · Wires and grounds, Power sources, Resistors, Capacitors, coils and transformers, Diodes and transistors, Switches and relays, Fuses and breakers, Lamps, motors and meters, Chips and logic gates

Flowchart symbols

26 symbols · The basic five, Often used, Rarely needed

Floor plan symbols

38 symbols · Walls and doors, Windows, Stairs and elevators, Bathroom, Kitchen and laundry, Furniture, Dimensions

P&ID symbols

54 symbols · Valves, Valve actuators, Pumps, compressors and fans, Tanks and vessels, Heat exchangers, Instruments, Lines and signals, Piping parts

Looking for something to do with them? See the free tools, or turn a hand-drawn sketch into a clean diagram with Sketch2scheme.