Free tools

Calculators and sheets that run in the browser. There is no account, and nothing you type is uploaded.

• Speaker delay calculator

  Milliseconds from a distance and the air temperature, plus a 5 to 15 ms stage offset.

• Disc golf scorecard

  A 9- or 18-hole card for up to six players, with par and totals, to fill in or print.

• Reactive dog walk log

  Eight weeks of walks: date, trigger, distance, a 0 to 3 mark, and notes.

• Daily time budget

  Named blocks in a 24-hour day, and a ring that shows the time still open.

• Film slate

  Scene, take, and roll, large enough for a camera, with a clap flash and beep.