Camera troubleshooting

Free Open Source Webcam Not Working? Run This Online Test

If your webcam is blank, blocked, or missing in a call app, use the live browser test below to check camera access, device detection, and preview output.

Start webcam check Browse all tools
Live preview Permission check No installs
Live Camera preview
Status Browser feedback
0 Downloads
Webcam not working help page with live online camera test
Black screen diagnosis

Useful when apps show no picture, the wrong camera, or a blocked feed.

Fast browser check

Confirms whether the issue starts before Zoom, Meet, Teams, or streaming software.

Live webcam check

Webcam Troubleshooting Test

Use the webcam tool below to confirm whether the browser can see your camera, show a preview, and read device information.

Read the guide
📹

Webcam Preview

Click "Start Webcam" to begin testing

Webcam Information

Status Not Started
Resolution -
Aspect Ratio -
Frame Rate -
Device -

Settings

Features

✓ Real-time video preview
✓ Multiple camera support
✓ Snapshot & download
✓ Resolution detection
Permission-first check
Find out quickly whether the browser can access the camera
Device list
See whether the expected webcam appears at all
Live preview
A working preview confirms the basic camera path is healthy
Useful before app debugging
Separate browser camera issues from app-specific issues

Built for troubleshooting

What This Webcam Not Working Test Helps You Isolate

A webcam problem can come from browser permission, wrong camera selection, cable issues, or another app already using the device.

Permission blocked

If the browser cannot access the camera, the problem often starts with denied permission.

Wrong webcam selected

Systems with more than one camera may open the wrong device by default.

Blank or black preview

A black feed can point to app conflicts, cable problems, or a hardware fault.

Before support calls

Use the page to confirm whether the browser itself can open the camera before deeper troubleshooting.

Simple workflow

How to Check a Webcam That Is Not Working

Start the live preview, allow permission, and compare the device list and status output with what you expected to see.

Webcam not working test step 1 allow camera permission
01

Allow camera access

If permission is denied, the browser cannot open the webcam at all.

Webcam not working test step 2 check device list and preview
02

Check the preview and device list

Confirm that the expected webcam appears and that a live image is shown.

Webcam not working test step 3 review camera status and resolution
03

Review the status output

Use the reported camera information to decide whether the issue is permission, selection, or hardware related.

Search Intent Cluster

Popular Webcam Checks

Target camera setup problems directly, from basic preview checks to resolution validation.

Webcam Tester

Preview your camera feed, switch devices, and take snapshots in the browser.

Open page

Camera Resolution Test

Verify the actual video size your webcam delivers at 480p, 720p, 1080p, or higher.

Open page

Take Picture With Webcam

Preview the camera, capture snapshots, and download webcam images directly in the browser.

Open page

More testing tools

Explore the full suite for keyboard, mouse, audio, and utilities.

Language support: All major tools are available in 8 languages - Arabic, Russian, Spanish, French, Portuguese, Japanese, German, and Korean. Select your language from the header menu to switch.

Keyboard
Keyboard Tester

Test keyboard functionality, detect ghosting, measure latency, check for stuck keys

Test your keyboard
Keyboard
Arabic Keyboard Tester

Test Arabic keyboard layout and key response in an Arabic-first interface

Test Arabic layout
Keyboard
Typing Speed Test

Measure WPM, accuracy, and typing consistency

Check typing speed
Keyboard
Latency Checker

Test device and input latency in your browser

Measure latency
Keyboard
Spacebar Speed Test

Count how many spacebar presses you can make in 5, 10, or 30 seconds

Test your spacebar
Keyboard
Key Repeat Rate Tester

Measure your keyboard key repeat rate (Hz) and initial delay (ms) in your browser

Test repeat rate
Keyboard
Typing Rhythm Fingerprint

Visualize your inter-keystroke timing patterns and get a rhythm consistency score

Analyze rhythm
Keyboard
Keyboard Switch Sound Analyzer

Classify your mechanical keyboard switches as linear, tactile, or clicky using mic FFT analysis

Analyze sound
Mouse
Mouse Tester

Check mouse buttons, scroll wheel, cursor movement, and responsiveness

Test your mouse
Mouse
Mouse Speed Tester

Measure your click speed (CPM or CPS) with timed tests

Check click speed
Mouse
Mouse Sensitivity / DPI

Test DPI, sensitivity, and tracking accuracy

Test DPI settings
Mouse
Mouse Trail

Visualize mouse movement trails and precision

View mouse trails
Mouse
Ghost Click Detector

Detect unintended or phantom clicks

Detect ghost clicks
Mouse
Mouse Polling Rate Test

Check if your gaming mouse runs at 125Hz, 500Hz, 1000Hz or higher

Test polling rate
Mouse
Mouse LOD Tester

Measure your gaming mouse lift-off distance to optimize sensor performance

Test LOD
Display
Screen Tester

Detect dead, stuck, or hot pixels on screens

Test your screen
Display
Monitor Refresh Rate Test

Detect if your display runs at 60Hz, 144Hz, 240Hz or higher

Test refresh rate
Display
Monitor Color Test

Check color accuracy, gradient banding and backlight uniformity

Test colors
Display
Backlight Bleed Test

Check your LCD monitor for backlight bleed, IPS glow, and clouding

Test for bleed
Display
Touch Screen Test

Test for dead zones, ghost touches and multi-touch on phone or tablet

Test touch screen
Display
PWM Flicker Test

Check if your monitor uses PWM backlight dimming that can cause eye strain

Test for flicker
Camera
Webcam Tester

Check webcam quality, resolution, and snapshots

Test your webcam
Audio
Mic Tester

Verify microphone input and audio levels

Test your microphone
Audio
Headphone / Speaker Tester

Test stereo channels and sound output

Test audio output
Utility
OCR Tool

Extract text from images quickly

Extract text now
Utility
QR Code Reader

Scan QR codes with camera or image upload

Scan QR codes
Utility
QR Code Generator

Create custom QR codes instantly

Create QR code
Utility
Password Generator

Create strong, secure passwords instantly

Generate password
Utility
WhatsApp Link Generator

Create clickable WhatsApp chat links

Generate chat link
Utility
WhatsApp Brand Links

Create branded WhatsApp links and QR codes

Create brand link
Utility
WhatsApp Sentiment Analyzer

Analyze chat sentiment and tone

Analyze sentiment
Utility
All Tools

Browse all hardware testing tools in one place

View all tools
Gaming
Gamepad Tester

Test PS5, Xbox, Switch and PC controller buttons, stick drift and triggers

Test controller
Gaming
Reaction Time Test

Measure how fast you react with a browser-based millisecond reflex test

Test reaction time

What to Check When a Webcam Is Not Working

A webcam can fail for several different reasons: blocked browser permission, the wrong camera being selected, another app holding the camera open, or a hardware problem. This page helps you narrow that down with a live browser test.

If you only need to verify the camera resolution instead of troubleshooting a failure, use the camera resolution test.

How This Browser Test Helps

  • If the browser cannot open the camera at all, permission or device detection is the first suspect.
  • If the wrong camera appears, you can switch devices and confirm the expected webcam exists.
  • If the preview is black, another app or a hardware problem may be interfering.
  • If the preview works here but not in another app, the issue is likely app-specific.

Most Common Causes of a Broken Webcam

The most common causes are denied permission, privacy settings in the operating system, another program already using the webcam, or selecting the wrong device when multiple cameras exist. External webcams can also fail because of loose USB connections or a bad cable.

Webcam Not Working FAQ

How do I know if my webcam is working?

If the live preview appears and the browser shows your camera information, the webcam is working at the browser level.

Why is my webcam black in the browser?

A black preview can happen when another app is using the camera, permission is blocked, or the webcam has a connection or hardware problem.

What if this page works but my video app still fails?

That usually points to an app-specific issue, such as the wrong camera selection, disabled permission inside the app, or virtual camera conflicts.

Continue testing your hardware with these related diagnostic tools.

Microphone Tester

Check if your mic works, measure input levels, and diagnose audio quality issues.

Test microphone input online →

Headphone & Speaker Test

Verify left/right stereo channels and test speaker output quality.

Test audio output channels →

Screen Tester

Detect dead pixels, stuck pixels, and screen uniformity issues.

Test monitor for dead pixels →

Keyboard Tester

Verify all keys work, detect ghosting, and measure input latency with our free keyboard tester.

Test keyboard keys online →
View all testing tools

Webcam Tester Guide

Quick steps to run the webcam tester and review your webcam quality results.

Start the test

  1. Open the tool and prepare to begin.
  2. Allow camera access and check the preview.
  3. Reset to run another quick check.

Adjust settings if needed

  • Review tool options for your ideal test.
  • Switch inputs or settings if results look off.
  • Reset to run another quick check.

Review results

  • Look for missed inputs or delays.
  • Compare multiple runs for consistency.
  • Export or note results if required.
Why is the tool not responding?

Make sure the page is focused and the correct device is selected.

How do I reset the test?

Use the reset button to clear results and start over.

Does this work on mobile devices?

Most tools work best on desktop, but mobile may still function for basic checks.

Can I run multiple tests in a row?

Yes. Reset after each run to compare results.

Is the test private?

Testing runs locally in your browser and is not uploaded.

What should I do if results look wrong?

Try another browser or device to confirm the issue.

Need more tools? Explore keyboard, mouse, audio, and utility testers in the tools list below.