Check your microphone, camera, and speakers before the interview, meeting, or stream. Live level meter, record & replay, camera preview with resolution and frame rate, and a left/right speaker check — all in one place.
Click start, allow microphone access, then speak normally. If the meter moves and the waveform wiggles, you're being heard.
Click start, allow camera access, and see exactly what a video call would show — plus the resolution and frame rate your camera is delivering.
Play a short tone through each channel. If you hear "left" on the left and "right" on the right, your speakers or headphones are wired correctly.
Five minutes before a job interview is a terrible time to discover your microphone doesn't work. Yet that's when most people find out, because the only way they ever test their gear is inside the meeting itself — fumbling with settings while everyone watches, asking "can you hear me now?" into the void. This page exists so that never happens to you again. It's a complete pre-call check for the three things that can ruin a video call — your microphone, your camera, and your speakers — and it runs entirely in your browser with nothing installed and nothing sent anywhere.
Click Start mic test and allow microphone access when your browser asks. Then just talk normally — say a few sentences the way you would on a call. Three things tell you your mic is healthy:
Then there's the part most mic testers skip: Record 5 seconds & replay. A meter can tell you the microphone is working, but only your own ears can tell you whether you sound crisp or like you're calling from inside a fish tank. The replay clip is held in your browser's memory only — it is never uploaded, and it's discarded the moment you leave the page.
If you have more than one microphone — a headset, a laptop's built-in array, a USB condenser — a device picker appears once the test is running, so you can switch between them and compare levels without touching your operating system's sound settings. This is also the fastest way to catch the classic failure: the call app listening to the wrong mic.
Click Start camera test, allow camera access, and your live preview appears exactly as a meeting app would show you — mirrored by default, because that's how you're used to seeing yourself (you can untick the mirror option to see what others actually see, which is subtly different and worth a look). Use it to check your framing, your lighting, and whether that lamp behind you is turning you into a silhouette.
The two most common speaker problems are "no sound at all" and "left and right are swapped" (surprisingly easy to do with detachable headphone cables and some USB adapters). The speaker test plays a short tone through only the left channel, only the right channel, or both, so you can confirm each side in isolation. If "Left" comes out of your right ear, your channels are reversed — annoying for music, genuinely confusing for games and edited video.
Your microphone and camera are the two most sensitive permissions a website can ask for — they are literally a live feed of your voice and your face. Many gear-test sites route that feed through their servers, or quietly wrap the test in analytics and recording libraries. This one is different by design: the audio and video streams go from your hardware to your screen and nowhere else. There is no upload, no recording on our side, no server that ever sees a single frame or sample. The level meter, waveform, frame-rate counter, and replay clip are all computed locally by your own browser using standard Web Audio and media APIs. When you click Stop — or simply close the tab — the hardware is released and everything the test held in memory is gone.
That's not a marketing line; it's an architectural fact you can verify. The page makes no network requests with your media, and your browser's permission indicator (the little camera/mic icon in the tab) confirms exactly when the hardware is on and when it's off.
Open the test and speak: the live level meter and waveform respond instantly if the mic hears you. Use record-and-replay to hear exactly what callers will hear, which catches the muffled-headset problem the meter alone cannot.
The camera preview shows your actual framing, lighting, and background, plus the real resolution and frame rate your camera is delivering, with a mirror toggle to match what feels natural.
Usually the wrong input device is selected or the browser lacks mic permission. The device picker here lists every mic so you can find the live one, and the troubleshooting notes decode the permission prompts.
The speaker test plays each channel separately, confirming both sides work and are not swapped, which matters more than people think with headphones.
No. Audio and video stay entirely in your browser; the record-and-replay clip lives in memory for your ears only and vanishes when you leave.