Start clock with beeps is a free, web-based start clock for orienteering, cross-country skiing, running and other interval-start sports. It shows the current start time and beeps for the last five seconds before every whole minute, with a longer and louder beep exactly on the minute — just like a physical start clock, but free in your browser.
The app shows which competitors start each minute and can read the starters' names aloud. The start list is fetched straight from Eventor using an event ID and API key, or uploaded as a CSV or JSON file. The time can be shifted to repeat an earlier start or prepare for a coming one. The screen can be kept awake and shown full screen.