Lankio Tools

Video Metadata Checker

Temporary server processing

Inspect codec, container, and embedded metadata in a video.

Drag and drop a file, or click to browse

MP4, MOV, WebM, or MKV — briefly processed on a temporary server file, deleted immediately after.

How it works

  1. 1Choose or drag in an MP4, MOV, WebM, or MKV file.
  2. 2The file is written to an isolated, randomly-named temporary location on the server, analyzed with ffprobe (via a fixed argument list — never a shell command built from your input), and the metadata result is returned.
  3. 3The temporary file is deleted immediately afterward, whether the analysis succeeds or fails. C2PA Content Credentials are checked separately, entirely in your browser.

Privacy

Video analysis requires a brief server step because there's no practical way to run ffprobe-equivalent analysis in a browser. The file is never permanently stored: it's written to an isolated temp directory with a random filename and deleted in a guaranteed cleanup step right after processing, whether it succeeds or fails.

Supported formats

MP4MOVWebMMKV

Limitations

Server-side video processing is rate-limited and capped in file size to keep the service usable for everyone. Very large files or unusual codec combinations may fail to analyze.

Frequently asked questions

Why does this tool need a server, unlike the image tools?
There's no lightweight, reliable way to parse container/codec-level video metadata entirely in-browser the way exifr does for images. We use ffprobe on a temporary, isolated, auto-deleted file instead.
Is my video stored after I check it?
No. It's written to a randomly-named temporary file, analyzed, and deleted in the same request — including on error. See our Privacy Policy for details.