BreathCheck is a small, self-guided breathing companion built around one idea: your workday changes how you breathe, usually without you noticing, and a few honest minutes of attention can help.
What it actually is
A short check-in — resting breathing rate and a gentle breath-hold control check — followed by a plain-language read of what those numbers mean, plus a handful of guided breathing exercises you can use any time: before a hard task, between meetings, during a stressful moment, or at the end of the day.
Who it's for
Developers, IT professionals, designers, and anyone who spends most of their day at a screen. Nothing here requires you to be an expert in breathing techniques — that's rather the point.
What it isn't
BreathCheck is not a medical device and doesn't diagnose anything. The scores are illustrative trend indicators meant to help you notice patterns over time, not clinical measurements. If you're experiencing sudden or severe breathing problems, please seek proper medical care rather than relying on this tool.
How it's built
It's a small, independent project — a static site with no accounts and no backend. Everything you do (test results, streaks, history) stays in your own browser. See the privacy policy for the specifics.
Questions or feedback
Get in touch on the contact page — feedback genuinely shapes what gets built next.