How to Test a Camera on Android

A quick camera test on an Android phone shows whether the camera works, whether apps and websites can use it, and how good the picture is before a video call or recording. Use the built-in Camera app first, then a browser-based webcam test or the app you plan to use.

Before you start

You need your Android phone, a browser that supports camera access, and enough light to see your face clearly. Wipe the front and rear lenses with a soft, clean cloth, because smudges are a common cause of a hazy picture.

Know where the test runs. The Camera app works on the device. An online webcam test runs in your browser after you grant permission, but whether the video stays on your phone or is sent to a server depends on that tool. Read its privacy information instead of assuming. If the test lets you take snapshots or recordings, check where the files are saved and delete any you don't need.

Close video call apps, camera apps and other browser tabs that might be using the camera. Usually only one app can use a camera at a time.

Step-by-step instructions

• 1. Open the built-in Camera app and switch between the rear and front cameras. If both show a live picture, the hardware and system camera service are working.
• 2. Close the Camera app so it releases the camera.
• 3. Open your browser and load a webcam test page. Browsers allow camera access only on secure pages, so make sure the page loads over a secure connection.
• 4. Start the test. Your browser asks whether the site may use the camera. Allow it.
• 5. If Android asks whether the browser itself may use the camera, choose an option that allows access.
• 6. If the test lists more than one camera, pick the one you want to check. Usually that is the front camera for video calls.
• 7. Look at the preview and read any reported details, such as resolution and frame rate.
• 8. When you finish, close the tab. You can also revoke the site's camera permission if you don't plan to use the test again.

Camera permission on Android has two layers. The browser needs Android's camera permission, and each website needs the browser's permission. On Android 11 and later, the system prompt can offer options such as Only this time, While using the app and Don't allow. The one-time option lets you test without leaving permanent access. Setting names and locations vary by manufacturer and Android version. Look for the app's permissions in system settings, and for site permissions in your browser's site information or settings.

On Android 12 and later, there is also a system-wide camera access control, often available as a quick settings tile or in privacy settings. If it is turned off, apps may get a black picture or show a prompt to unblock the camera. The same versions show a status bar indicator while an app is using the camera, which confirms which app has access.

The selected camera matters. Browser tests may label cameras generically, for example front and back, or with numbered names, and some phones expose several rear lenses. If the preview shows the wrong view, switch the camera in the test or in the app you are using.

Check the output

• A live, moving image appears rather than a black or frozen frame.
• The view comes from the camera you selected.
• The orientation is correct. Front camera previews are often mirrored, but the other person may see an unmirrored image.
• The resolution reported by the test matches what you expect for video, not the camera's photo resolution.
• Movement looks smooth and the reported frame rate stays steady.
• Your face is evenly lit, in focus and free from heavy grain.

A browser test shows the stream the browser received from the camera, which is often lower than the camera's maximum photo or video resolution. Video call apps may lower resolution and frame rate further, depending on the connection and the app's settings. Treat the browser result as a check that access works and the image is usable, not as a measure of the camera's full capability.

Common problems and next steps

Camera blocked or permission denied: allow camera access for the browser in Android settings and for the site in the browser's site permissions. If you denied the request earlier, the browser may not ask again until you change the setting yourself. Then reload the page.

Black screen: check that no other app or tab is using the camera, and that the system camera access control is on. Then close and reopen the browser. If the image is still black, restart the phone.

Wrong camera or wrong lens: choose a different camera in the test's selector or in the app's settings. If only one camera is listed, the browser may expose only some of the phone's cameras.

Low frame rate, choppy video or grain: add light in front of you rather than behind you. In dim light, cameras often lengthen exposure, which can lower the frame rate and add noise. Close other demanding apps and tabs as well.

Blurry picture: clean the lens and hold the phone at a normal distance from your face. In the Camera app, tap the screen to focus. Browser tests may not offer focus controls.

If the camera works in the Camera app but not in the browser, the cause is most likely a permission or browser setting, so try updating the browser or using a different one. If the camera fails in every app, including the built-in Camera app, the problem is likely in the system or the hardware. Check for system updates, and contact the device manufacturer's support if the issue continues.