Box Breathing Timer
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Free Online Breathing Timer

Guided breathing exercises used by Navy SEALs, therapists, and athletes. 25+ patterns with sound cues, voice guidance, and custom sessions. No sign-up required.

Reduces stress

Activates the parasympathetic nervous system in under 2 minutes.

Sharpens focus

Used by Navy SEALs and athletes before high-pressure situations.

Improves sleep

The 4-7-8 pattern is clinically linked to faster sleep onset.