Gaming & Hardware
Hardware testers, and calculators for the number a player needs.
Featured tools
Gamepad Tester
Live buttons, sticks, and analog triggers from a connected controller. No extra permission.
Keyboard Tester
See which keys are down, plus the last key, code, and modifiers. Built for a physical keyboard.
Mouse Tester
Buttons held, movement, wheel, and clicks inside the pad. Not a DPI or polling-rate meter.
All tools
Reaction Time Test
Time from the colour change to your click. Not monitor input lag — one try is noisy.
CPS Test
Clicks per second over a five-second burst, timed from the clock, not a stepped animation.
Sensitivity Converter
Convert in-game sensitivity between games with a documented yaw so cm/360 stays the same.
eDPI Calculator
eDPI is DPI × sensitivity. cm/360 uses each game’s documented yaw — exact for that yaw, not a guess.
FOV Calculator
Horizontal, vertical, and diagonal field of view at an aspect ratio, with advertised game presets.
Monitor PPI Calculator
Pixels per inch, pixel pitch, and megapixels from a resolution and the panel diagonal.
Refresh Rate Tester
How many frames this tab is painting. That is fps, not a guarantee of the panel’s Hz rating.
Controller Dead-Zone Tester
See stick drift, then try an axial or radial dead zone. It does not rewrite the pad.
Screen PPI Calculator
PPI for this display using CSS size, device pixel ratio, and a diagonal you type.
Battery Runtime Calculator
How long a pack lasts at a steady load: capacity ÷ current. Not watt-hours.
Loot Box Expected Value
Expected value per pull versus cost, and the chance of a rarity in N independent pulls.
PC Build Cost Estimator
Add the prices you would actually pay. There is no live price list.
Steam Library Spend Calculator
Add what you paid for each game. No Steam login, no market valuation.
Esports Bracket Generator
Single elimination from a list of names. Click a side to send them through.