Breathe CLI – Paced resonance breathing in the macOS terminal

In plain words

Breathe CLI is a macOS terminal application that guides users through paced breathing at six breaths per minute to support vagal tone training. Built as a single Python file with no external dependencies, it displays a visual pacer in the terminal that users follow to maintain a consistent breathing rhythm. The tool is designed for people interested in slow breathing as a non-pharmacological practice, with safety constraints built in for cardiac patients, including no breath retention and no rapid breathing cycles. It requires no installation, account, or subscription—users simply run the command and follow along.

written from the facts on this page · September 2026

From the sources

Paced resonance breathing in your terminal. Contribute to marekkowalczyk/breathe-cli development by creating an account on GitHub.

In the maker’s words, at launch

I built a terminal app that paces slow breathing at 6 breaths per minute for vagal tone training. It's a single Python file, stdlib only, no dependencies — just run breathe and follow the bar. I'm a cardiology patient (HFrEF). Slow breathing at resonance frequency is one of the few non-pharmacological interventions…

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