Media Info answers questions like “what codec is this file, how many frames, what bitrate?”. Once a file is selected, the panel sorts the local output of ffmpeg -i into “File”, “Video stream” and “Audio stream” groups: file name, size, container, duration and overall bitrate, plus video codec, resolution, frame rate, pixel format and video bitrate, or audio codec, sample rate, channel count and audio bitrate.

The panel is read-only: it produces no conversion jobs and no output files. One click copies all the information, and the full probe log can be expanded under “Raw ffmpeg -i output”; when a probe fails, “Probe again” is offered.

1. 01Select a media filepick a video or audio file on the left of the audio/video workbench and switch to the “Media Info” tab.
2. 02Wait for the probethe first use loads roughly 31–32 MB of ffmpeg engine before running the local -i probe; a load or probe failure shows an error.
3. 03Read the fieldsfile, video stream and audio stream groups show the fields that were parsed successfully; fields that could not be parsed are never filled with invented defaults.
4. 04Copy or diagnose“Copy all information” yields plain text; expand the raw output when you need to investigate, or click “Probe again”.

Read-only tool

it never modifies a file and does not produce a JSON or CSV media report; the only outputs are the on-screen view, copied text and the raw log.

Parsing depends on the build

fields come from the -i log of the current ffmpeg build and its parser, so rare containers, damaged files or codecs that build does not support may fail to probe or come back with missing fields.

Fallback metadata

before the ffmpeg probe is ready, player metadata from the browser may be shown temporarily, with a clear note that the fields may be incomplete.

Input range

the public tool is registered for the usual video and audio extensions, not for arbitrary binary files.

What it does not do

it does not measure loudness, transcode, or repair a damaged container; to change format use “Video Convert” or “Audio Convert”.

Media content is handed to ffmpeg.wasm for the -i probe locally in the browser and is never uploaded; the first probe downloads roughly 31–32 MB of ffmpeg core from the site's asset domain or jsDelivr, and the CDN request contains no file content.