Mic & webcam test. Every device, checked before the call.
Audio is analysed and played back locally, nothing is uploaded or stored.
Test report
Troubleshooting
No permission prompt appears
The mic meter doesn't move
The camera preview is black
I hear nothing in the speaker test
Left/right are swapped
Every device, checked before you dial in
This is the fastest way to confirm your microphone, webcam and speakers work before a call, interview or recording, no downloads, no sign-up. The mic tab shows a live level meter, a scrolling waveform and a peak reading, plus a five-second record-and-play-back so you can hear yourself. The camera tab reports your actual output resolution and frame rate (not just what you asked for) and lets you grab a snapshot. The speaker tab plays independent left and right tones and a 200 Hz → 8 kHz sweep to catch balance and range problems. Everything is analysed in your browser with Web Audio and getUserMedia, no audio or video ever leaves your device.
How to use the Mic & Webcam Test
This page checks your microphone, camera and speakers before a call, interview or recording. It asks your browser for access to each device, shows a live level meter or camera preview, and plays test tones you can hear on the left, right or both sides. A running test report collects the results so you can send them to whoever is helping you.
Step by step
-
Pick a device tab
Choose Microphone, Camera or Speakers at the top of the card. The chips above the card show the current state of each, such as granted, denied, active or not found.
-
Test your microphone
On the Microphone tab, choose a device from the Microphone list, then press Start mic test and allow access when the browser asks. Speak normally and watch the waveform and the level meter. Waveform detail (Normal, Fine or Very fine) only changes how the wave is drawn.
-
Hear yourself back
While the mic is running, press Record 5s & play back. The button counts down from 5, then a player appears and plays the clip. Press Stop to release the microphone when you are done.
-
Test your camera
On the Camera tab, pick a device and a Requested resolution (640 × 480, 1280 × 720 by default, or 1920 × 1080), then press Start camera. Untick Mirror preview to see yourself the way others will. Press Snapshot for a still, then Download PNG to save it.
-
Test your speakers
On the Speakers tab, set Volume (default 50%), Tone frequency (100 to 2000 Hz, default 440 Hz) and Waveform. Press Left channel, then Right channel; each tone lasts about one second and should come from that side only. Both plays it in the middle, and Frequency sweep glides from 200 Hz to 8 kHz over four seconds.
-
Save the test report
The Test report box updates as you go. Press Copy report to paste it into a support chat, or Download .txt to save it as media-test-report.txt. If you plug in a device after the page loads, the lists usually update on their own; if they do not, press Refresh devices.
Reading the result
- Under the mic meter, level is how loud you are right now and peak is the loudest recent moment, held for about a second. Normal speech should move the level clearly without the peak reaching the end of the bar.
- A clipping warning appears when the peak reaches 98%. That means the sound is distorting; move back from the mic or lower its input gain in your system settings.
- Under the camera preview, actual shows what the camera really delivers, for example actual: 1280 × 720 @ 30fps. It can differ from the Requested resolution, because the browser picks the closest mode the camera supports.
- In the report, each device line says not tested yet until you run that test. The report also lists the number of mics, cameras and outputs found, the permission state and your browser's user agent string.
Tips and common mistakes
- If the mic meter stays flat, check the Microphone list first. Laptops often list several inputs, and the default may not be the one you speak into.
- A black camera preview usually means another app such as a video call is using the camera, or a privacy shutter is closed.
- Start the Speakers tab at a low Volume, especially with headphones on, and raise it slowly.
- Bluetooth headsets can switch to a lower quality mode while the mic is in use. Press Stop on the mic test before you judge the speaker tones.
- Some browsers do not list your speakers by name until you allow microphone access, so run the mic test first if the outputs line is empty.
Privacy and limits
All tests run in your browser. Audio and video are not uploaded or saved; the 5-second clip and any snapshot exist only in this tab until you close it or download them. The page needs a secure https connection and a browser with camera and microphone support, and it shows a notice instead of the tool if that support is missing. The report includes your browser's user agent and the names of your devices, so check it before you share it.
Everything you need to go on camera.
- Live microphone meter, see your input level and a held peak in real time, with a scrolling waveform and a clipping warning at 98%.
- Record 5s & play back, capture a short clip from your mic and hear it instantly to confirm quality.
- Real camera readout, the preview shows your actual resolution and frame rate, not just the value you requested.
- Mirror & snapshot, flip the preview like a video call, then grab a PNG still and download it.
- Stereo tone test, play left, right or both channels with a choice of waveform to verify balance.
- Frequency sweep, run 200 Hz → 8 kHz to check speakers and headphones across the audible range, then copy a full test report.
Frequently asked questions.
Is the Mic & Webcam Test free?
Is it private? Is my audio or video uploaded anywhere?
Why does it ask for camera and microphone permission?
Why does the camera show a different resolution than I chose?
Do I need to install anything or create an account?
Published · Last updated .
