Free breathing timers

Each one runs in your browser. Nothing to install, no account, no email address.

• Box breathing timer

  A free box breathing timer: four seconds in, hold, out, hold. No signup, no download, works in your browser. Follow the circle and breathe.

  Box Breathing · about 3:47

• 4-7-8 breathing timer

  A free 4-7-8 breathing timer to help you fall asleep: in for four, hold for seven, out for eight. Runs in your browser, no signup.

  4-7-8 Breathing · about 3:07

• Coherent breathing timer

  A free coherent breathing timer at roughly six breaths per minute — five and a half seconds in, five and a half out. No holds, no signup.

  Coherent Breathing · about 4:15

• Physiological sigh timer

  A free guided timer for the physiological sigh — double inhale, long exhale. About sixty seconds, and the fastest way to bring your arousal down.

  Physiological Sigh · about 1:09

• Extended exhale timer

  A free breathing timer with the out-breath twice as long as the in-breath. No breath holding, which makes it a gentler starting point than 4-7-8.

  Extended Exhale · about 2:59

• Breath hold timer

  A free breath hold timer using CO₂ intervals — relaxed holds with shrinking recovery between them. Read the safety notes before you start.

  CO₂ Intervals · about 6:13