Why this tool is useful
Use this tester to verify framing and determine which resolution and frame rate the browser actually negotiated before joining a video call.
Browser & Privacy · runs locally
Camera Preview and Settings Tester
Open a permission-scoped local camera preview and report the resolution, frame rate and facing mode exposed by the active video track.
Ready. Your working data stays in this browser.
How it works
The browser requests one video-only MediaStream, attaches it directly to a muted local preview and reads the active track settings. It does not record frames or send them to YTSave.
Practical example
Permit the camera, wait for the preview and compare the reported 1280 × 720 or 1920 × 1080 setting with the quality selected in your operating system or meeting app.
Validation
The test reports only browser-observable events and measurements; it does not invent hidden hardware health, temperature or manufacturer specifications.
Privacy boundary
Input and output remain in this tab. Copy and download happen through browser APIs without a server upload.
Result passport
Every run reports its tool mode, timestamp and input/output size so transformed data can be audited.