Microphone Test Online Free — Quality Checkup & SNR Analysis
A free browser-based microphone tester that checks if your mic is working correctly. Shows real-time audio levels, waveform visualization, and device information — no download needed.
Test your microphone online — check quality, latency, noise level, and frequency response
We will check:
- Is the microphone working?
- Background noise level
- Voice capture quality
- Dynamic range
- Latency
Quick Check
Say something or tap on the table...
Background Noise Analysis
Stay quiet for 5 seconds...
Voice Capture Quality
Read aloud:
"The quick brown fox jumps over the lazy dog. One, two, three."
Recording...
Dynamic Range
Perform these 3 actions:
Latency (Round-Trip)
Turn on speakers (low volume) so the mic can pick up the test tone.
Overall Grade
Recommendations
Detailed Metrics
Microphone Comparison
Features
How It Works
- Select your microphone and grant access.
- We run 5 quick tests: signal detection, noise analysis, voice capture, dynamic range, and latency.
- Get a detailed report with grade, metrics, and recommendations.
Frequently Asked Questions
Is this test accurate?
It uses the Web Audio API for precise measurement within browser capabilities. While not a replacement for professional calibrated equipment, it provides reliable comparative results and identifies real problems.
Do you record or store my audio?
No. Everything runs 100% in your browser. Audio is analyzed in real-time and never uploaded.
What is a good SNR?
Above 40 dB is good for most purposes. Above 50 dB is excellent. Below 30 dB means background noise will be clearly audible.
Why does my mic have electrical hum?
Usually caused by poor USB grounding, proximity to monitors/power supplies, or low-quality cables. Try a different USB port or use a powered USB hub. For detailed diagnosis, run our microphone noise test.
Can I compare two microphones?
Yes! After the first test, click "Compare with Another Mic" to run a second test and see a side-by-side comparison.
What browsers are supported?
Chrome, Edge, Firefox, and Safari (14+). We recommend Chrome or Edge for the best accuracy.
We can — and it's free! Just send us a quick message with your idea. If you'd like to discuss it in detail, leave your email and we'll get back to you. You can stay anonymous.
