Stopwatch

Start, stop, lap — accurate timing that doesn't drift.

A stopwatch with lap times that stays accurate by measuring elapsed time instead of counting ticks — the mistake most first attempts make. A tidy lesson in doing time right.

What's inside

• Start / stop / reset and lap splits
• Accurate timing from performance.now(), not tick counting
• Clean mm:ss.cs formatting
• Lap list rendered from an array
• Light & dark mode, no dependencies

Quickstart

$ git clone https://github.com/devai-io/devai_boilerplates.git$ cd devai_boilerplates/stopwatch$ open index.html   # or just double-click the file

Browse the code

The full source, exactly as it ships in the repo.