Developer Utilities

Small developer utilities that save a trip to a random website. Encode and decode Base64, explain a regex, build UTM links, generate QR codes and vCards, and more — the everyday helpers. Free in your browser, and available by API when you need them in a script.

Developer Utilities
Valve flow coefficient calculator
Cv from GPM, ΔP and G
POST /phys/valve-flow-coefficient$0.002
Developer Utilities
Velocity calculator
average v = d/t in metres per second
POST /phys/velocity$0.002
Developer Utilities
Vickers hardness number calculator
HV from force and diagonal
POST /phys/vickers-hardness-number$0.002
Developer Utilities
Voltage regulation calculator
% from no-load and full-load V
POST /phys/voltage-regulation$0.002
Developer Utilities
Volume to density calculator
ρ=m/V from mass and volume
POST /phys/volume-to-density$0.002