I Built a Drum Tuner That Vibrates When You’re Out of Tune

🥁 Live demo: https://indjoov.github.io/drumcraft/ ⭐ GitHub: https://github.com/indjoov/drumcraft Drum tuning is one of the most frustrating things in music. Unlike guitars, drums don’t have one string. They have 8 separate tension points around the head. And each one needs to match. Most tuners don’t help with this. So I built one that does. And I added something unusual: Haptic feedback. Your phone vibrates when you're out of tune. You can literally feel the pitch. I call it DrumCraft . An open-source, accessible drum tuner that runs entirely in the browser. No backend. No installs. Just your mic and your phone. Why Drum Tuning Is Harder Than Guitar Tuning When you tune a guitar string, you tune one thing. When you tune a drum, you're tuning a system. Each lug affects the others. You don’t tune notes — you tune tension symmetry . If one lug is tighter, the drum sounds uneven. That’s why professional drummers go lug by lug . DrumCraft was designed specifically for that. The Key Idea: T