Before processing the video, first read the basic information clearly.
Enable JavaScript for interactive processing. You can read the instructions, limits, and FAQs below without it. Files are processed only in your browser.
Video InformationUser Guide
Read the native video's container MIME, size, duration, byte size, and aspect ratio piece by piece, then export a TXT or JSON list after complete verification.
How to use
Add videos to view.
Start reading information and wait for the entire batch to be completed.
Check the basic information of each file and export TXT or JSON.
Formats and limits
The source must be MP4 or WebM that can be decoded by current browsers, and the maximum size of a single file is 100 MiB.
Sources up to 300 seconds, up to 8,294,400 pixels (UHD 4K), up to 8,192 px on a side.
Maximum of 10 copies, totaling 300 MiB; if any copy fails to be read, no partial list will be generated.
Output
Basic video information TXT/JSON; TXT seconds are rounded to milliseconds, JSON retains the accuracy of browser reporting.
Frequently asked questions
Can the info list confirm the video codec or raw fps?
cannot. The container MIME is not equal to the codec. The HTML Video API cannot reliably provide the codec, source fps, or complete metadata. This tool does not speculate.
The file name and content are only processed in your browser and are not transmitted to the server. The original file will not be overwritten. Please export the required results before leaving the tool.