At a bustling Bombay airport, a passenger named Pankajtanwarbanna grew frustrated when a fellow traveler blasted music and laughed loudly. Unable to confront the noise, he coded a quick solution: a browser app that records and plays back the same sound with a two‑second delay, forcing the source to shut up.

The tool, dubbed STFU, leverages the web audio API to create an auditory feedback loop that exploits cognitive dissonance. After discovering a similar project by TimDarcet, Pankaj renamed his script, citing the sharper name. The repository now hosts 93 stars and 12 forks and open source community support continues to.

While the app’s purpose is playful, it highlights how simple web technologies can enforce social norms in public spaces. Users can fork the code, tweak the delay, or integrate it into larger noise‑control tools. Future iterations might add voice‑activation or analytics to measure effectiveness for users and researchers in the.