jarvisbox

重訓組間休息計時器

組間休息倒數計時器,時間到時發出聲音提示。

100% client-side · no upload

1:00

How to use

  1. Enter your desired rest period in seconds or tap a preset (30 s, 60 s, etc.).
  2. Click Start after finishing a set — the countdown begins immediately.
  3. An audio beep plays when the rest period ends, signalling the next set.

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常見問題

Is this gym rest timer free?
Yes, completely free with no signup and no usage limits.
Does my data leave my device?
No. Everything runs in your browser. Nothing is sent to any server.
Does it work on mobile?
Yes. The timer is mobile-first and works on iPhone Safari and Android Chrome with the screen kept on.

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