Free tools that just work.

Fast, private online tools with no sign-up: test your screen, calculate with official data, or let a fair wheel decide.

Gaming tools

Test your monitor, frame rate and display smoothness right in the browser.

FPS & Refresh Rate Test
Measure your real frame rate and monitor refresh rate, and compare motion at different FPS.

Finance calculators

Money calculators built on official data, with the method shown.

Inflation Calculator
See what US dollars from any year since 1913 are worth today, using official CPI data.

Random pickers

Fair, instant decisions: spin a wheel, pick a name or draw a number.

Yes or No Wheel
Spin the wheel for a fair yes or no answer.
Wheel Spinner
Add names or options, spin, and let the wheel pick a random winner.
Random Number Generator
Pick one or many random numbers in any range, with or without repeats.