How to use this tool
- Start the camera and decide whether to grant access.
- Place your face or subject inside the preview.
- Hold a printed word in view and toggle Mirror to compare orientation.
- Adjust camera position and stop the preview when finished.
GearCheck Lab // Free browser tool
Webcam Mirror & Framing Test
Set up a meeting or recording shot with a live camera preview, optional mirror and a rule-of-thirds overlay.
Webcam Mirror & Framing Test workbench
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Read the result correctly
Mirroring changes only this page’s preview. Your meeting software may mirror its local preview while sending unmirrored video to other participants. Printed text makes that difference easier to observe. The composition guide divides the preview into thirds and helps place the subject consistently. Compare headroom, lighting and background without changing several settings at once. Video dimensions describe the active browser stream rather than the camera sensor’s maximum capability.
Limits and troubleshooting
This cannot set framing or mirror preferences inside another app. The preview uses contain sizing to avoid deliberate cropping, but the camera driver can still provide a cropped stream. Hiding the page and Stop release camera tracks. No photos or recordings are created.
Privacy and control
Device previews, recordings, selected files and report notes stay in your browser. Downloaded files remain on your device. The call check sends small HTTP probes to GearCheck Lab. The WebRTC test exchanges temporary connection descriptions through our server and contacts the disclosed STUN service only after you create or join a session. Ordinary page requests and usage measurement are described in our privacy policy.