Use this free online decibel meter to measure noise levels in real time directly in your browser using your device's microphone.
Check how loud your room, office, classroom, or environment is without any installation required.
The audio is processed locally in your browser, ensuring that nothing is recorded or uploaded.
Live Meter Functionality
Press start and allow microphone access to see the decibel level update live.
The tool tracks minimum, average, and maximum decibel values throughout the session.
Reference and Understanding
Provides a reference guide to understand what different decibel (dB) levels mean, from whispers to dangerous sounds.
Explains common use cases such as checking home, office, or classroom noise levels, and comparing street noise.
Offers insights into accuracy and limitations, noting that results can vary and recommending professional equipment for certified measurements.
Frequently Asked Questions
Is it free? Yes, it's a free online tool with no sign-up, payment, or hidden ads.
Does it record audio? No, all sound processing is done locally in the browser.
How accurate is it? It provides an estimate, with accuracy depending on your device and environment.
What is a safe decibel level? Quiet and moderate levels are generally comfortable. Prolonged exposure to loud noise (85 dB and above) may pose a hearing risk.
Can I use it on my phone? Yes, it works on modern mobile browsers with microphone access enabled.