Instantly confirm browser microphone permission and device recognition
Browser microphone diagnostics • Real-time level meter • Frequency spectrum • 100% local
Microphone Test
Free online microphone tester — verify mic access, input level, frequency spectrum, and device switching. Works with built-in, USB, and Bluetooth microphones.
What this online microphone test does
This free online microphone test helps you verify whether your microphone is detected by the browser and picking up sound properly. It displays a real-time input level meter and frequency spectrum so you can check gain, background noise, and overall mic response. Whether you are preparing for an online meeting, troubleshooting a mic that stopped working, or comparing your laptop mic to an external USB microphone, this tool gives you instant visual feedback without installing any software.
How to test your microphone step by step
- 1.Open this microphone test page in Chrome, Firefox, Edge, or Safari — no installation required
- 2.Select a microphone from the device list and grant browser permission when prompted
- 3.Speak into the microphone at a normal volume and watch the level meter respond
- 4.Observe the frequency spectrum to see how your voice distributes across low, mid, and high frequencies
- 5.Switch between available microphones to compare input quality and background noise levels
Why use this free microphone checker
Check whether voice input is strong enough for video calls, recordings, or voice chat
Spot background noise, weak gain, or clipping issues before they affect your calls
Compare built-in laptop mic, external USB mic, and Bluetooth headset mic quality
No software installation, no data uploaded — all analysis happens in your browser
Real-time visual feedback helps diagnose issues faster than recording and playing back
Microphone test FAQ
Does this microphone test upload my audio to a server?
No. The microphone signal is analyzed entirely in your browser using Web Audio APIs. No audio data is recorded, stored, or uploaded to any remote server.
What does the frequency spectrum show about my microphone?
The spectrum displays how much signal energy appears across different frequency ranges. A good voice microphone shows strong mid-range response (300 Hz – 3 kHz). Excessive low-end rumble or high-end hiss may indicate noise issues.
Can I test multiple microphones and compare them?
Yes. The device selector lists all microphones your browser detects. Switch between them to compare input level, frequency response, and background noise for each one.
Does this work with USB-C and Lightning microphones?
Yes. Any microphone that your operating system recognizes and makes available to the browser will work — USB, USB-C, Lightning (with adapter), 3.5 mm, and Bluetooth.
When should I use this microphone test?
Use it before video calls, online classes, podcast recordings, voice messages, livestreams, or any situation where microphone quality matters. It is also useful when troubleshooting mic issues after hardware or software changes.