Dev.to
6/25/2026

I built a 50+ feature wellness app in a single HTML file as a student — here's why
Short summary
A student built Mognota, a free wellness companion combining Pomodoro timers with 50+ guided activities—breathwork, yoga, meditation, games, and journaling—in a single vanilla JavaScript HTML file. The app works offline, supports 109+ languages, synthesizes notification sounds with Web Audio API, and stores nothing server-side. It's a compelling case study in shipping feature-rich products without frameworks or build-step dependencies.
- •Built 50+ feature wellness app in single HTML file using vanilla JS and Web Audio API
- •Completely free, offline-capable, 109 language support, zero server storage or dependencies
- •Student project case study demonstrating indie shipping and community-driven development
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