Video Metadata Viewer Online — Codec, FPS and Resolution
Use this video metadata viewer online to inspect duration, dimensions, codec, frame rate, format and file size without uploading.
Files are processed locally in your browser and are not uploaded.
About this tool
The viewer combines browser media metadata with a local media probe to summarize the technical properties that matter for playback, editing and delivery. It is useful when a file extension alone does not explain the actual video codec or frame rate.
How to use
- Choose a supported local file or enter the required values.
- Review the available settings and run the tool.
- Check the result, then download or copy it before closing the page.
Features
- Reports duration, resolution, aspect ratio and file size.
- Detects available codec and frame-rate information locally.
- Supports common MP4, WebM, OGG, MOV and M4V inputs.
Common use cases
- Check whether a clip matches an editor or upload specification.
- Confirm dimensions and duration before publishing.
- Identify a codec when the filename is ambiguous.
Common issues and tips
- Some uncommon containers or codecs cannot be decoded by every browser.
- Variable-frame-rate files may expose an estimated rather than fixed FPS value.
Privacy
Your video, image or subtitle data is processed locally in your browser and is not uploaded to Tools12345.
Frequently asked questions
Is the video uploaded for inspection?
No. The browser reads and probes the selected file locally.
Can it show bitrate?
The current report focuses on duration, size, dimensions, codec and frame rate.
Why is a codec marked unknown?
The browser or local probe may not expose enough information for that source format.