PID Canvas
A free editor for hydraulic, electrical and automation schematics
Draw the circuit, press run, and watch the pressure build. PID Canvas is a schematic editor with a physics simulation that runs in your own browser.
Twelve calculators come with it — cylinder, pump, winch, cable, protection, motor start, 24 V and 4-20 mA. Hydraulic symbols follow ISO 1219-1 and electrical symbols IEC 60617, and the formulas behind each result are the ones the simulation itself uses.
Drawings stay in your own browser. Nothing is uploaded, and the page loads nothing from any other domain. Free to use, with no account and no paid tier.