P&ID Symbol Builder

Drag a symbol from the left onto the canvas to begin — or tap a symbol on mobile to drop it here. Click one symbol, then another, to connect them.

Selected Symbol

Click a symbol on the canvas to select it, edit its tag, connect it, or delete it.

Line Types

Process piping

Instrument signal

ISA Tag Legend

1st letter — measured variable

PPressure

FFlow

LLevel

TTemperature

2nd letter — function

IIndicator

TTransmitter

CController

VValve (final control element)

Example: PT-101 = Pressure Transmitter, loop 101. FIC-204 = Flow Indicating Controller, loop 204. Numbers are the loop/area number, not a strict count. Colors here aid learning — real P&IDs are usually drawn in plain black & white.