Free Sound Level Meter - No Download Required
Measure sound levels instantly in your browser with professional accuracy. Perfect for classroom, workplace, and environmental noise monitoring.
A-weighted measurements with ±2 dB accuracy. Suitable for workplace safety and environmental monitoring.
No downloads, no sign-up, no cost. Works on any device with a browser and microphone.
Track TWA, dose percentage, and alerts for 85 dBA and 90 dBA exposure levels.
Monitor noise levels for OSHA compliance
Manage classroom noise for better learning
Measure room acoustics and sound levels
Assess noise pollution in communities
Microphone captures sound waves
A-weighting matches human hearing
RMS determines sound levels
Real-time decibel readings (dBA)
Accuracy: ±2 dB typical | Best for: Preliminary assessments & ongoing monitoring | Not for: Legal compliance documentation
Start using our free online decibel meter now - no download, no sign-up required.