Launching today
Snap Decibel Meter
Free browser decibel meter — no install needed
4 followers
Free browser decibel meter — no install needed
4 followers
Free browser dB meter — no app, no signup, no install. Works on phone & desktop. Real-time readings via Web Audio API with visual graph and 0-100 Noise Score. All processing is local. Just open, allow mic access, and measure instantly. Includes sound comparison table and noise calculator. Clean, fast, privacy-first.
I made Snap Decibel Meter after realizing most "decibel meter" apps are bloated, full of ads, or demand access to everything on your phone just to read the microphone.
My goal was dead simple: open a browser, allow mic access, and get a clean, real-time reading instantly. No app stores, no accounts, no data leaving your device.
I started with just the raw dB reading, but that felt too abstract — so I added a 0-100 Noise Score, a scrolling history graph, and context like a sound comparison table (leaf rustling → jet engine) and a noise-distance calculator using the inverse square law. I also added shareable result cards because people love showing off how loud their environment is.
The hardest part was calibration — every device mic is different, so instead of claiming "exact dB," I built adaptive smoothing and clear disclaimers. It’s an estimate, but a surprisingly consistent one.
This is a side project I keep improving. If it helps you measure noise levels, troubleshoot your audio setup, or win an argument about loud neighbors, I’ll call it a win.
Try it out and let me know how it reads on your device!