Media Lab
Media info
See what your browser can read from an audio or video file: duration, size, channels and whether it plays.
- 1Add your MP3, WAV, M4A, AAC, OGG, OGA, OPUS, FLAC, WEBM, WEBA, MP4, MOV, M4V or OGV files
- 2Pick options
- 3Click Run
- 4Download result
Limits
- Reports only what the browser exposes: duration, picture size and whether it can play the file. The browser does not tell pages which codec, bit rate or frame rate a file uses, so this tool does not claim any.
- For WAV, MP3, FLAC and Ogg files, the sample rate and (for WAV/FLAC) bit depth come from the file header, which this page reads itself. For other audio the browser decodes at its own rate and that rate is not the file’s.
- Channels and the decoded check run only for files up to 60 MB and 30 minutes; larger files show duration only.
- Safari and other browsers can read different formats, so "plays here: no" means only this browser, not that the file is bad.
- Everything happens on this device; the file is never uploaded.
Ask the AI chat
The AI chat can run this tool for you. Try:
- “what is the duration of this video?”
- “show info about this audio file”
- “what resolution is my video?”