Decibel Meter
Hey HN! I built a browser-based decibel meter that lets you measure sound levels without installing any apps or software. The tool uses your device's microphone to measure sound from 30-130 dB, with A-weighting to match human hearing perception. It works on both desktop and mobile browsers. Key features: - No installation required - runs entirely in the browser - A-weighted measurements (standard for noise exposure) - Educational content about sound levels and hearing protection - Reference guide for common sound levels - Privacy-focused: all processing is done locally, no audio is recorded…
Decibel Meter launched on November 4, 2025 with 8 votes, #1,383 of 9,796 launches that month and more than 50% of that year's launches.
What it does
Decibel Meter brings professional sound measurement to your browser—no installation, no cost, total privacy. Perfect for checking workplace safety, protecting your hearing at concerts, educational purposes, or monitoring home noise levels. Professional-grade features with zero friction.
Turn your phone or laptop into a decibel meter. Measure sound and noise levels in dB right in your browser – free, instant, no app or sign-up. Includes dB comparison charts and hearing-safety guides.
Measure browser-based sound levels in dB with your microphone. No app required for everyday noise checks and reference readings. Reference only. Use a certified sound level meter for calibration-critical work. The human ear is built for quiet environments. Above 85 dB, hair cells in the inner ear begin to die — permanently. The louder the sound, the faster the damage accumulates. From construction sites to baby bedrooms – our sound level meter fits every noise scenario. Sound levels above 100 dB damage your hearing within minutes. Measure before the show to know when ear protection is needed. OSHA mandates hearing protection above 90 dB (8-hr average). Check if your workers need protection…from decibelmeter.org
In the maker’s words, at launch
Hey HN! I built a browser-based decibel meter that lets you measure sound levels without installing any apps or software. The tool uses your device's microphone to measure sound from 30-130 dB, with A-weighting to match human hearing perception. It works on both desktop and mobile browsers. Key features: - No…
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