This tool is not the one the research asked for
Reads the container header only. No decoder, no transcoder, and the file never leaves your device.
Video SEO checker
People publishing video who need the file to play instantly and carry the markup Google reads.
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How this tool runs
This tool runs inside your browser. Your file never leaves your device.
- Max input per run
- 1907.3 MB
- Rate limit
- 120 runs per hour
- Retention
- Nothing is stored: the input is discarded once the response is sent.
- Engine
media.inspect
Reads the MP4/MOV box tree and the WebM/Matroska element tree directly: duration as ISO 8601, per-track codec and profile, resolution and reduced aspect ratio, audio rate and channels, embedded captions, creation timestamps, and whether moov precedes mdat so the file plays before it finishes downloading. No decoder, no upload, nothing inferred.
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