Tools for Sports & Athletics
17 toolsBrowser-based tools for athletes, coaches and active people. Time laps and intervals to the millisecond, train reaction speed, run breath-pacing exercises, count down to events — all without installing anything.
Certificates and diplomas
Build an award document and print it — one, or a whole class at once.
Glycemic index
GI is measured on 50 g of carbohydrate; you eat portions. So this calculates load.
Weather
Hourly and 9-day weather from two independent forecast models at once — with the disagreement between them shown, not hidden.
Eating window
Protocol, first meal and sleep — the window, the live countdown and the stages follow from those three.
Daily Water Intake
The guideline covers all water in a day. Here you see how much comes from food and how much is left to drink.
Online Stopwatch
Precise online stopwatch with laps, splits, sparkline and shareable link
Online Chess Clock
Free chess clock for two players on one device — Bullet, Blitz, Rapid, Classical with Fischer, Bronstein and delay modes.
Kitchen Timer
Set multiple cooking timers with preset recipes and sound alerts.
Reaction Time Test
Measure your reaction speed in visual, audio, and reflex modes with millisecond precision.
Breathing Exercise
Guided breathing exercises — Box Breathing, 4-7-8, Wim Hof and 5 more techniques with visual timer.
Countdown to Date
Live countdown timer to any date with themes, full-screen and shareable link
Running Pace Calculator
Enter a distance and the time it took to get your pace, speed and predicted race finish times.
Online Timer
Free online timer: run several labeled countdowns at once, plus Pomodoro and HIIT interval modes, fullscreen, and alarm sounds.
GPS Speedometer
See your real speed from GPS: max, average, distance and track export. Check what your dashboard reads against true speed. No install.
Compass
Browser compass with true north corrected for declination, bearing hold, a sighting mode and an honest accuracy figure.
Tally Counter
Count events with one tap: people at the door, knitting rows, training laps. Several categories at once, step, target, undo, pace and CSV export.
Elevation
Find the elevation at any point on a map, build a profile along a route and get the slope in percent and degrees. Coordinates next to the height.
