Live diagnostic · runs entirely in your browser
Test Your Webcam & Microphone, Instantly
Point it, click start, get a straight readout: resolution, frame rate, and device name, in the seconds before your call, interview, or class.
Your camera preview appears here. Nothing is recorded or uploaded, the feed never leaves this tab.
Click start, then choose Allow when your browser asks for camera access.
Two more checks
Finish the pre-call check
A working camera with a dead mic is the same problem in a different costume. Run both before you close this tab.
Microphone test
Speak normally. The meter below should move with your voice, then record and play it back.
Speaker test
Play a reference tone through both speakers or one side at a time to confirm each channel works.
No sound? Raise the volume and confirm the right output device is picked in your system settings.
Preflight
A 30 second checklist
The same four things solve most call problems before they start.
- 1Close other video appsZoom, Teams, or Meet left open in the background can hold the camera and block this test.
- 2Face a light sourceA window or lamp in front of you beats any expensive webcam. Avoid backlight.
- 3Raise the camera to eye levelA stack of books under a laptop fixes the looking down angle instantly.
- 4Test in the browser you will call fromPermissions and default devices are set per browser, not system wide.
Troubleshooting
Diagnostic codes
The handful of issues that cause nearly every failed camera test, in order of likelihood.
Camera not detected
- Make sure your webcam is plugged in (or built-in camera is enabled in BIOS).
- Close other apps that may be using it: Zoom, Teams, Meet, OBS, Discord.
- Unplug and re-plug external webcams; try a different USB port.
- Click Retry above after fixing the connection.
Camera permission blocked
- Click the camera icon in your browser's address bar and choose Allow.
- In Chrome: Settings, Privacy and security, Site settings, Camera.
- In Safari: Safari, Settings, Websites, Camera.
- Reload the page and start the test again.
Webcam shows a black screen
- Check the physical privacy shutter on your webcam, slide it open.
- Make sure no other application has exclusive access to the camera.
- Update your webcam driver from the manufacturer's site.
- Reboot your device to release a stuck camera process.
Webcam image is blurry
- Wipe the lens with a soft microfiber cloth.
- Improve lighting, face a window or a soft light source.
- If your camera has manual focus, twist the lens ring to adjust.
- Switch to a higher-resolution camera in your system settings if available.
Works in one app but not another
- Only one app can use a camera at a time on most systems. Close the other app.
- Check OS-level privacy settings to ensure the failing app is allowed.
- Re-grant browser permission to this page if you are testing here.
Browser cannot access the camera
- Make sure you are on HTTPS, browsers block camera access on insecure pages.
- Update your browser to the latest version.
- Disable browser extensions that may block media access and retry.
- Try a different browser to isolate the issue.
Quick guide
A friendly guide to testing your webcam
Think of this as a quick chat with a friend who has fixed this stuff a hundred times.
What an online webcam test actually does
When you click Start Camera Test, your browser asks for permission to use your camera through a standard web feature called getUserMedia. Once you say yes, the live video shows up right on this page so you can check your framing, lighting, and resolution before anyone else sees you. Nothing is sent to a server. The browser handles the camera locally, which is how the same feature works inside Google Meet or Zoom on the web.
While you are here, it is worth running the matching microphone test and speaker test too. A working camera with a dead mic is the same problem in a different costume.
Privacy, in plain English
Webcam Tester runs entirely in your browser. The video stream never touches our servers because there is no upload step in the code. Modern browsers also require a secure HTTPS connection before they will hand over the camera at all, which is part of the W3C Media Capture specification. If you want the longer version, the privacy policy spells it all out, and the about page covers why we built the tool this way.
The issues that trip people up the most
Here is the honest truth from years of helping friends and family fix video calls. The same handful of problems show up over and over again, so if your camera is not behaving, start here before you blame the hardware.
Another app is already holding the camera
Most operating systems only let one app talk to the camera at a time. If you had a Zoom call earlier and force quit the window, Zoom may still be running in the background and clinging to the camera. Quit it from your system tray or task manager, then reload this page. If you are not sure who the culprit is, a quick restart clears every app at once.
You blocked permission once and forgot
Browsers remember the very first answer you gave to a camera prompt. If you clicked Block in a hurry, you will never see the prompt again on this site. Click the small camera or lock icon to the left of the address bar, switch the permission to Allow, and reload.
The OS privacy switch is off
Windows and macOS both have a master switch that blocks camera access for whole categories of apps. On Windows it lives under Settings, Privacy and security, Camera. On macOS look in System Settings, Privacy and Security, Camera. If your browser is not in that list with the toggle on, no website can reach the camera.
The page is not on HTTPS
Modern browsers refuse to hand over the camera on plain http pages. If you are testing your own site locally, use https or localhost. Webcam Tester is already served over HTTPS, so this only bites you on other tools.
Black preview, working camera
Nine times out of ten this is the little plastic privacy shutter many laptops and external webcams ship with. Slide it open. The other common cause is an outdated driver, which the webcam maker usually fixes with a one click installer on their support page.
The wrong camera is selected
If you have a built in webcam plus a plug in one, the browser picks whichever it saw first. Inside any video app, including this one, you can switch devices from the camera settings menu. It is also worth checking your meeting app, because Zoom and Teams remember their own last used camera separately.
If none of those fit your situation, scroll up to the diagnostic codes for step by step fixes, or jump to the FAQ to see if your exact question has already been answered.
Why a quick test saves you stress
Most call quality problems are not bad luck, they are blocked permissions, an app that grabbed the camera first, or a driver that needs a nudge. Catching it five minutes early means you can fix it calmly instead of apologising on a live call.
A word on lighting and framing
The cheapest upgrade to any webcam is a window in front of you and a clean wall behind you. Avoid sitting with a bright light at your back, because the camera will expose for the background and turn your face into a shadow.
Use cases
Why use Webcam Tester
A quick check that saves you from awkward first minutes.
FAQ
Frequently asked questions
How do I test my webcam online?
Click Start Camera Test above and allow camera access when your browser asks. You will see a live preview, your camera's name, and the resolution it is streaming at, all in the browser.
Is Webcam Tester free?
Yes. Webcam Tester is completely free to use, with no account, sign up, or download required.
Does this website record my video?
No. The video stream stays on your device. We do not upload, store, or transmit any footage to a server.
Why can't my browser detect my camera?
The most common causes are: another app (Zoom, Teams, Meet) is using the camera, browser permissions are blocked, or the camera driver is disabled. Close other apps, check site permissions, and try again.
How do I allow camera access in Chrome?
Click the camera icon at the right side of the address bar, choose 'Always allow', then reload the page. You can also go to Settings, Privacy and security, Site settings, Camera.
Can I use Webcam Tester before an interview?
Absolutely, that is one of the most common uses. Test your camera, mic, and speakers a few minutes before the call to fix any issues calmly.
Does Webcam Tester work on mobile devices?
Yes. The tool works on modern mobile browsers including Chrome and Safari on Android and iOS. You may need to allow camera permission in the address bar.
Privacy first
Your video never leaves your device
Webcam Tester runs entirely in your browser. We do not upload, store, or share anything you capture.
- No recordings storedNothing is saved, ever.
- Used only for testingCamera access is local only.
- No accounts neededNo sign up, no tracking pixels.
- Runs in your browserPure client side processing.