Webcam and Mic Test Online (2026): Test Your Camera and Microphone on Laptop, iPhone and Android

Which camera or mic test do you need?

People search for this in a dozen ways: “webcam test”, “test my camera”, “mic test”, “microphone test online”, “is my mic working”, “Zoom mic test”, “camera not working on laptop”. They all come down to one question: does the device pick up a picture and sound clearly, and if not, is it a setting or a broken part? Pick the row that matches what you have:

How to test your webcam online

The MxMob webcam test works in Chrome, Edge, Firefox and Safari on Windows 10 and 11, macOS and ChromeOS, with built-in laptop webcams and plug-in USB webcams such as Logitech models.

1. Close Zoom, Teams, OBS and any other app that might be using the camera. On Windows, only one app can usually use a webcam at a time.
2. Open mxmob.com/webcam-test and click Start webcam test.
3. When the browser asks, click Allow. If it doesn’t ask, the camera is blocked for this site: click the camera or settings icon to the left of the address and allow it.
4. You should see yourself within a second or two. If the computer has more than one camera, pick each one from the list to test it.
5. Click Take test photo to freeze a frame and look for blur or spots, and use Mirror to see the picture the way the other people on a call see it.

How to read the webcam results

• Resolution: the test asks for 1080p, so the number you see is the best your camera gives this browser. Many laptop webcams are 720p (1280 × 720); newer ones are 1080p (1920 × 1080) or higher. A 1080p webcam stuck at 640 × 480 usually means a USB 2.0 hub, an old driver or another app holding the better mode.
• Frame rate: 30 fps is normal for video calls. Under 15 fps looks choppy. In a dark room many webcams drop their frame rate to brighten the picture, so turn on a light and watch the number rise.
• Brightness: near 0% with a black picture means the lens is covered or the camera is switched off. It should rise when you face a window or lamp.
• The picture itself: a pink, purple or green tint, lines, or dark spots in the same place on every frame point to a damaged sensor or a worn cable in the screen hinge.

How to test your microphone online

1. Unplug headphones you don’t want to test, or plug in the headset you do.
2. Open mxmob.com/mic and click Start Mic Test, then allow the microphone.
3. Talk in a normal voice about a foot from the device. The bars should jump as you speak and drop when you stop.
4. Click Record 3s Audio, say a sentence, then play it back. This is the only way to hear the problems a level meter can’t show: muffled sound, hiss, echo or a robotic Bluetooth voice.

What a good mic test looks like

• Bars move when you talk and fall when you stop. The mic works. If they never move, it’s blocked, muted or the wrong mic is selected (see the fixes below).
• Bars move all the time, even in silence: background noise, a fan, or an electrical hum from a cheap charger or a bad USB hub.
• Bars barely move: the input volume is low, the mic hole is blocked, or you’re testing a far-away mic, such as a webcam’s, instead of your headset.
• The playback sounds muffled or distant: on a phone, check for a case or screen protector over the mic hole, or lint inside it. On a laptop, check you aren’t using a Bluetooth headset in “hands-free” mode, which cuts audio quality.

Testing a laptop? The full laptop test checks the mic and webcam together with the speakers, keyboard, screen and battery, and its speaker test uses the microphone to hear the speakers, so it checks both at once.

How to test the camera and microphone on an iPhone or Android phone

A phone has more to check than a laptop: two or more rear lenses, a front camera, and two or three microphones. Open mxmob.com/check in Safari on an iPhone or Chrome or Samsung Internet on Android, then tap a test to run it on its own, or Test all to run all 33 checks.

• Microphone: say “Hello, testing.” The test learns the room’s background noise first, then passes as soon as it hears your voice, and shows the peak level.
• Front and rear cameras: each opens full screen with the resolution and frame rate. Tap Switch lens on phones with more than one rear camera, and take a test photo to check focus. The phone camera test explains what blur, hunting focus, dust spots and a wobbling picture mean.
• Face ID or face unlock: if the front camera works but face unlock fails, try the face recognition test.

Test all three iPhone microphones

If people say you sound muffled on calls but your videos sound fine, or the other way round, one of the iPhone’s microphones is the problem. Apple’s own advice is to record with each one and play it back:

If one recording is quiet or muffled, take off the case and any screen protector, gently brush the hole for that mic with a soft dry toothbrush, and record again. Never push a pin into a mic hole; it can puncture the membrane. A mic that is still bad after cleaning needs a repair. For Samsung phones, Samsung Members › Support › Phone diagnostics also has mic and camera checks; the Samsung diagnostics guide covers it, and there are guides for iPhone and Pixel too.

How to test your camera and mic in Zoom, Teams, Google Meet and Discord

A browser test tells you the hardware works. If it passes but the meeting app still shows a black square or a silent mic, the app is using the wrong device. Every major app has its own check:

In every app, choose the device by name: Integrated Webcam or FaceTime HD Camera rather than a virtual camera, and your headset rather than Default. When a Bluetooth headset connects, Windows and macOS often switch the mic to it without asking.

Webcam not working? Fixes for a black screen or “no camera found”

Work down this list in order. Most people are fixed by step 1, 2 or 3.

1. Check the hardware switch. Many HP, Lenovo and Dell laptops have a sliding privacy shutter over the lens, or a key with a crossed-out camera icon (often one of the F keys) that disconnects the webcam completely. On a MacBook, the green light next to the camera comes on whenever it’s in use.
2. Close other apps using the camera. Zoom, Teams, OBS, Discord and Windows Hello can hold it. A browser tab with another meeting open counts too. The error “camera is in use” or a picture that freezes on the first frame means this.
3. Allow camera access for the system, the app and the browser site. The permission map shows exactly where.
4. Pick the right camera. If there’s a USB webcam, a docking station, a virtual camera (OBS, Snap Camera) or, on a Mac, an iPhone via Continuity Camera, the browser may be using that one. Select each camera in the webcam test.
5. Windows: reinstall the driver. Open Device Manager › Cameras (or Imaging devices), right-click the webcam, choose Uninstall device and restart. Windows reinstalls it. The Camera app error 0xA00F4244 “We can’t find your camera” usually clears this way, or after turning the camera back on in Settings.
6. Mac: restart the Mac and update macOS. If the camera is missing from every app and from System Information › Camera, it’s a hardware fault.
7. USB webcam: plug it straight into the laptop, not a hub, and try another port and cable. A webcam that disconnects when you move it has a loose connector.

If the camera doesn’t appear in Device Manager or System Information at all after a restart, the built-in webcam or the thin cable that runs through the screen hinge has probably failed. A USB webcam is the cheapest fix; a hinge cable repair costs more. Our laptop hardware guide covers the webcam with the rest of the laptop.

Microphone not working? Fixes for Windows, Mac, iPhone and Android

On a laptop or PC

1. Check the mute key and headset switch. Many laptops have a key with a crossed-out microphone. Headsets often have a mute switch on the cable or ear cup, or mute when you raise the mic boom.
2. Choose the right input. Windows 11: Settings › System › Sound › Input, pick your mic, then click it and use Test your microphone and the input volume slider. Mac: System Settings › Sound › Input, pick the mic and watch the input level move as you talk.
3. Allow microphone access for the system and the browser (see the map below).
4. Bluetooth headsets: when the mic is in use, many Bluetooth headsets switch to a lower-quality “hands-free” mode, so you sound like you’re on an old phone. That’s normal for Bluetooth, not a fault. For better sound, use the laptop’s own mic or a wired or USB headset.
5. 3.5 mm headsets: a headset with one plug needs a combined headphone-and-mic jack. Plugged into a headphone-only jack or a splitter the wrong way round, the mic won’t work. The headphone test checks the jack’s audio side.
6. Still silent? Update or reinstall the audio driver in Device Manager › Audio inputs and outputs, then restart.

On an iPhone or Android phone

1. Disconnect Bluetooth earbuds and car audio. The phone may be using their mic instead.
2. Take off the case and screen protector, clean the mic holes, and test each mic.
3. Check the app has microphone permission. On Android 12 and later, also check the Microphone access tile in Quick Settings.
4. Restart the phone and update it. If the mic works in the phone test but not in one app, reinstall that app.
5. Did it start after a drop in water? Run the speaker test too, and read our muffled speaker guide: water often affects the speaker and mic together.

Where to allow camera and microphone access

If the browser never asks for permission, or you clicked Block by mistake, the camera and mic stay off for that site until you switch them back on. There are usually two switches: one in the operating system and one in the browser.

• Chrome and Edge: click the icon to the left of the web address, turn on Camera and Microphone, and reload. All sites: chrome://settings/content/camera (or edge://settings/content/camera).
• Safari on Mac: Safari › Settings › Websites › Camera and Microphone, and set the site to Allow or Ask.
• Firefox: click the camera or mic icon in the address bar to clear a block, or go to Settings › Privacy & Security › Permissions.
• Work or school laptop: your organization may block the camera or mic. If every switch is on and nothing works, ask your IT team.

How to tell if an app or website is using your camera or mic

It’s one of the most searched privacy questions: “can someone see me through my camera?” Every modern system now shows you when the camera or microphone is on:

• iPhone: a green dot at the top of the screen means the camera is on; an orange dot means the microphone is. Open Control Center to see which app used it. Settings › Privacy & Security › App Privacy Report shows each app’s access over the last 7 days.
• Android 12 and later: a green icon in the top corner shows when the camera or mic is in use. Privacy dashboard in Settings lists which apps used them recently, and the Quick Settings tiles turn both off for every app.
• Windows 11: Settings › Privacy & security › Camera (or Microphone) shows recent activity, which apps have used it and when.
• Mac: the green light next to the camera can’t be turned off by software on recent Macs. An orange dot in the menu bar means the mic is in use; Control Center shows which app.

Websites, including MxMob, can use the camera or mic only after you click Allow, and only while the tab is open. You can revoke access at any time from the address bar. Our tests process everything on your device; see the privacy policy and the docs for what is and isn’t stored.

Make your webcam and mic look and sound better on calls

• Light from the front. A window or lamp behind the screen, not behind you, does more for picture quality than a new webcam. Watch the brightness reading in the webcam test rise as you fix it.
• Clean the lens. Laptop webcams pick up fingerprints from closing the lid. A hazy, glowing picture is usually a smudge.
• Raise the camera to eye level. Prop the laptop on a few books.
• Get closer to the mic and away from fans and keyboards. A cheap wired headset usually beats a laptop mic.
• Check your connection. A choppy picture on calls but smooth in the webcam test is a network issue. Run the Wi-Fi speed test; 3 Mbps up and down is enough for HD video calls on most apps.
• Upgrade only if the test proves it: if the webcam is stuck below 720p or under 15 fps in good light, a 1080p USB webcam with a built-in mic is an easy fix.

Buying a used phone or laptop? Test the camera and mic first

Cameras and microphones are some of the most common hidden faults on second-hand devices, because a listing photo can’t show them. A rear camera with dust inside, a front camera that won’t focus or a dead bottom mic is easy to miss in a two-minute meetup. Before you pay:

• In person: run the free phone test or laptop test on the device, record a voice memo and a video with each camera, and play them back. Work through the used phone checklist or used laptop checklist for locks, IMEI and battery.
• Buying online or shipped: use Live Remote Inspection. The seller opens your link on the device and you watch the results live, including the microphone level as they speak and a photo from the camera, plus checks a scammer can’t fake, like a code you send that must appear on their screen.

For the full buying process, read how to test a used phone before buying online and what to check on a used iPhone.

Other phone tests people search for

Camera and mic problems often come with other faults, especially after a drop or water damage. These are the most searched phone checks, and all of them are free on MxMob:

Every test and checker is listed in the MxMob docs, and common questions are answered in the FAQ.