buncha.tools
buncha/health & fitness/interval

Interval Timer

Workout style
Ready
0:30
Total 7:40
Wake lock unsupported
Tip: works on any phone — the screen stays on while the timer runs (Wake Lock API). Voice cues use your device's text-to-speech, so you can hear "Work!" / "Rest!" through earbuds without looking at your phone.

Pairs well with

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About Interval Timer

HIIT, Tabata, EMOM, AMRAP — with voice cues, audible bells, and a screen that stays on.

Like every tool on Buncha, this one runs entirely in your browser. There's no upload, no log, no record of what you've pasted or generated. Close the tab and the data is gone.

↳ Have feedback or found a bug? hello@buncha.tools
b
Built browser-first. Run by one developer.
Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.
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Files never uploadNo tracking pixelsNo sign-up neededWorks in any modern browser
The handful of AI tools (paraphrase, summarise, blog, captions, etc.) send your prompt text to Anthropic's Claude API to do the work. Files, images, PDFs and video never leave your device. Pick the tools that fit your privacy comfort.