Measurement & sensors
Sound meter
Real-time sound meter: 6 visual levels from a silent bedroom to dangerous noise, plus the session's minimum value.
Measures ambient noise in decibels through the microphone and shows it on a colour-coded gauge with 6 levels, from a silent bedroom to the threshold that can harm your hearing. The session minimum is recorded continuously.
Android 7.0+ · Free to download
Key features
Continuous noise measurement in decibels using the device's microphone
6 visual levels: silence (<30 dB), library (<50), conversation (<70), traffic (<90), concert (<110), danger (≥110)
Gauge colour changes: green when safe, orange when moderate, red when dangerous
Session minimum recorded automatically so you can compare peaks
Filters out background noise that's too faint for clean readings
Why use it?
Check an open-plan office stays below 70 dB (conversation level)
Spot environments that are dangerous for your hearing (above 110 dB) at a concert or on a building site
Measure a room's background noise to assess its acoustics
Works offline
Most tools work without an internet connection.
No account
No sign-up, no email address required.
Free to download
Every tool is free. A one-time “Zero Ads” purchase removes the ads.
Sound meter is part of Tooliz
Along with 41 other tools. Free to download, on Android.
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Quentin (QuentinRG)Independent developer · Paris
Tooliz is an Android toolbox I built independently to bring everyday utilities together. Free to download, no account needed, designed to be useful and simple.
Discover all Tooliz tools