Video Metadata & Stream Inspector
Inspect video codecs, resolution, duration, bitrate, and audio streams with WebAssembly FFprobe.
- 100% free
- Files stay on your device
- No sign-up, no watermark
Select video to inspect
Supports MP4, MOV, WEBM, AVI, MKV, FLV, WMV
What is Video Metadata & Stream Inspector?
Inspect detailed video properties without installing bulky desktop media tools. Read container profiles, duration in milliseconds, audio sample rates, and video streams directly from the file header.
How to use Video Metadata & Stream Inspector
- 1
Add your file or input
Choose a supported file, drag it onto the upload area, or type/paste the data this tool works with.
- 2
Adjust the options
Pick the output format, quality, size or other settings the tool offers. Defaults work well for most files.
- 3
Process and download
Run the tool and save the result. Processing happens in your browser, so nothing is uploaded to a server.
Frequently asked questions
What technical video properties can I view?
You can view exact pixel dimensions, aspect ratio, frame rate (FPS), audio codec, sample rate, channel layout (stereo/mono), file size, and duration.
Does viewing video metadata require uploading the entire video?
No. The parser reads header atom boxes (like moov in MP4) using sliced JavaScript File API reads without uploading or downloading anything.
Can this tool detect whether my video is variable frame rate (VFR)?
Yes. It inspects timestamp deltas across decoded sample chunks to report nominal and average frame rates.
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