Circuit Timer
10 stations · 45s work / 15s transition — a real, working circuit timer right in your browser. Big color-coded phases, beeps, and the screen stays awake. Free, no sign-up.
Get Ready
0:10
Next: Work · 0:45
10:10 left
Palette
Space start / pause R reset M mute F fullscreen
How it works
The Circuit protocol
Ten stations of 45 seconds work and 15 seconds to move to the next — a balanced full-body circuit.
- 45 seconds at each station
- 15 seconds to move to the next
- 10 stations
- Lay out your stations first, then let the timer drive the rotation
Work
45s
Switch
15s
Stations
10
Total
10m
The Pulse app
Love these colors? There are 134 more.
This free timer is a taste of Pulse for iPhone & Apple Watch. The app has 136 searchable palettes, a full color picker, saved custom timers, big glanceable numbers, and your music keeps playing underneath. $3.99 once — no subscription, no ads, ever.
136 palettesEight free, 136 total — searchable, plus a full color picker to match your vibe.
Apple WatchStart any saved timer from your wrist with a haptic tap at every transition.
Live ActivityLock-Screen countdown + Dynamic Island pill keep ticking while you use other apps.
$3.99 onceOne payment unlocks everything. No subscription. No auto-renew. No ads.
Related timers
More free timers
Circuit Timer — 30/30
10 stations · 30s work / 30s transition
Circuit Timer — 40/20
8 stations · 40s work / 20s transition
Circuit Timer — 60/15
12 stations · 60s work / 15s transition
Circuit Timer — 50/10
10 stations · 50s work / 10s transition
Circuit Timer — 30/15
12 stations · 30s work / 15s transition
Tabata Timer
8 rounds · 20s work / 10s rest · 4 min