Pre-flight checks for your mic and camera
Thirty seconds before your call — confirm the hardware works, pick the right input, skip the awkward can you hear me?
Microphone test
Speak into your mic and watch the meter respondCamera test
Live preview of your webcam so you know it's workingThirty seconds that save the next hour
Run a quick check any time audio or video is about to matter
Before a call
Zoom · Teams · Meet · Slack huddlesThe 'can you hear me?' seconds at the start of every call — skipped. Confirm the mic is live before you hit join
Before recording
Podcasts · interviews · voice memosAvoid discovering halfway through a 90-minute session that the wrong input was selected. Start clean, finish clean
After plugging something in
New headset · external mic · webcamBrowsers often stick with the old default. Run the test, pick the new device, keep the signal where you want it
When something sounds wrong
Muffled · silent · echo · delayThe meter shows you whether audio is even reaching the browser. If the bar moves, the hardware works — the rest is software
When the meter won't move
Four things to check before you blame the hardware
Permission blocked
Click the lock icon in your browser's address bar, allow microphone and camera access for this site, then refresh
Wrong default input
Laptops love defaulting to the built-in mic even when a headset is plugged in. Use the dropdown above to pick your actual input
Another app is holding the device
Zoom, Teams, Discord, or OBS may be holding an exclusive lock on the mic or camera. Close them and refresh this tab
OS-level mute
macOS and Windows both have system mute switches that browsers can't override. Check the system menu first
The stuff people actually ask
About permissions, privacy, and why your device names are empty at first
Keep exploring
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