Video Metadata Viewer

How to use the video metadata viewer

1. Open a video file.
2. Read the properties table.
3. Copy the details if you need to report them.

About this tool

Duration, resolution and file size come straight from the browser's decoder, so they are reliable. Average bitrate is worked out from size and duration — the honest figure for the file as a whole, not whatever the encoder was configured with.

What this deliberately does not claim is codec detail, frame rate or camera metadata. Those live in the container's headers, and browsers do not expose them. Any tool showing them has either uploaded your file to a server or shipped a full demuxer; this one does neither, and says so instead of guessing.

There is no FFmpeg here. Browsers already decode the video formats they can play, so reading frames, metadata and audio needs no extra codec — which keeps these tools a few kilobytes instead of a thirty-megabyte download. The trade-off is honest: anything requiring a full re-encode is not offered rather than done badly.

Common uses

• Checking a video's resolution before uploading it.
• Working out roughly what bitrate a file uses.
• Confirming duration and aspect ratio.

Frequently asked questions

Why is there no codec or frame rate?

Browsers do not expose them. Reading those means parsing the container, which needs a demuxer far larger than this tool — so they are omitted rather than guessed.

Is the bitrate exact?

It is the average across the whole file, from size divided by duration. Variable-bitrate video moves above and below it constantly.