Audio Tools
Check microphones, speakers, headphones, recording, tones, and subjective hearing range.
Microphone Test
See and hear whether your browser is receiving a useful microphone signal.
Voice Recorder
Record, review, and download audio locally without creating an account.
Speaker Test
Confirm audible output and verify left, right, and center channel routing.
Headphone Test
Check headphone channels, center image, basic phase, and low-frequency playback.
Tone Generator
Generate controlled waveforms from 20 Hz to 20 kHz at a safe starting level.
Hearing Frequency Test
Explore your approximate subjective audible range at a conservative level.
What the browser can tell you
These tools report browser events, exposed settings, local measurements, or your own observations. They do not silently convert those signals into a hardware health score.
Each tool page lists its method, limitations, privacy behavior, and the most useful next troubleshooting step.