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免费 Online Stopwatch
Precision stopwatch with lap recording, fastest/slowest lap highlighting, and keyboard shortcuts. Counts up from zero with millisecond accuracy.
Runs in your browserNo sign-up, no pop-ups无需登录永久免费
00:00.00
Ready
Keyboard: Space start/stop · L lap · R reset
Optimize for your platform
工作原理
1
输入
输入你的文本或数据。
2
处理
在你的浏览器中即时处理。无服务器，无等待。
3
下载
保存你的结果。不存储任何内容。
为什么选择我们的？
✓Completely free — no hidden costs, ever
✓No account, email, or login required
✓Runs entirely in your browser — no uploads
✓Works on any device — phone, tablet, desktop
✓Open and ad-supported, with no tracking
✓Loads fast, with no installation needed
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