Webcam & Camera Tester

Test your camera, verify live video resolution and frame rate, and capture instant snapshots locally.

Click "Start Camera" to grant browser permission and test your webcam.

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Add this Webcam Tester directly to your site using iframe snippet.

What is Webcam Test?

Webcam Test is a privacy-first browser utility to preview your web camera, verify video resolution, check hardware FPS rates, and test camera functionality before joining video calls on Zoom, Google Meet, or Microsoft Teams.

It supports target resolution constraints (4K Ultra HD, 1080p Full HD, 720p HD, and 480p SD), multi-camera input switching, horizontal mirror effect toggling, and instant HD snapshot capture.

Powered by W3C requestVideoFrameCallback API, the real-time frame rate counter measures actual camera sensor output without relying on monitor refresh rates or synthetic estimates.

Privacy Guarantee: Camera streams are processed 100% locally in browser memory via HTML5 Canvas and MediaDevices API. Video feeds are never streamed or saved remotely.

Frequently Asked Questions

Is my webcam video feed uploaded to any remote server?
No! All video rendering, resolution inspection, and snapshot captures take place 100% locally within your browser using the HTML5 MediaDevices Web API. Your camera feed never leaves your device.
How do I change camera resolution or switch between multiple webcams?
Use the "Select Camera" dropdown to switch between internal or external USB webcams, and use the "Target Resolution" selector to request 1080p Full HD or 720p HD stream constraints.
Why does my browser prompt for camera permissions?
Browsers require explicit user consent via WebRTC security rules before allowing web applications to access video input hardware. Permission is isolated strictly to this session.
How does the real-time FPS counter measure true camera frame rate?
We utilize W3C standard requestVideoFrameCallback() which executes exactly once per newly decoded camera frame, calculating precise hardware frame rates without screen refresh rate interference.
Can I take HD snapshots and download them directly?
Yes! Click "Take Snapshot" to capture instant uncompressed PNG frames from your live video stream and download them directly to your computer.

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