Mouthbreather
Desktop app that uses local AI to detect mouth breathing and nudge you to close your mouth
| What is it | Desktop app that uses local AI to detect mouth breathing and nudge you to close your mouth |
|---|---|
| Pricing | Unknown |
| Platform | Desktop Application |
| Best for | reducing daytime mouth breathing, building awareness of breathing habits |
| Domain registered | 2024 |
Data updated Aug. 1, 2026
What does Mouthbreather do?
Mouthbreather is a free desktop app for macOS and Windows that uses local AI to detect when you're mouth breathing and reminds you to shut your mouth. It runs quietly in the background, tracking your lip position through your webcam, and sends a sound or notification whenever it catches you breathing through your mouth. The app is built by a small Vienna-based software agency called adlerlagune, who made it as a fun side project.
The AI model runs entirely on your device — no data ever leaves your machine, and you can use it offline. The app lives in your menu bar, and a small flash appears when your mouth is open. You can also view stats like streaks and total mouth breathing incidents, which helps you build awareness over time. The interface is minimal and unobtrusive by design.
Mouthbreather is for anyone who wants to break the habit of mouth breathing, whether for health reasons (it's linked to lower oxygen efficiency, dental issues, and facial structure changes) or just to feel more alert. It's especially useful for people who work at a desk and tend to unconsciously mouth breathe while focusing. The app is completely free with no ads or upsells.
Key features
What makes it stand outWho is Mouthbreather for?
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