What does Video Metadata Viewer do?
Inspect the technical properties a browser can read from your local video. Tubelexity shows file size, container, resolution, duration and detectable codec markers, then marks fields such as exact FPS or stream bitrate unavailable when they cannot be measured reliably. Copy the report or export TXT or JSON. It does not upload the video or load FFmpeg merely to open the page.
How to use Video Metadata Viewer
- 1Choose a local MP4, MOV, WebM or browser-readable MKV file.
- 2Review available file, video and audio fields.
- 3Note fields marked unavailable rather than inferred.
- 4Copy or export a TXT or JSON report.
Supported inputs and outputs
Inputs
MP4, MOV, WebM, Browser-readable MKV
Outputs
On-page metadata report, TXT, JSON
Practical uses
- Checking video dimensions before upload
- Identifying a detectable codec
- Saving a technical report for an editor
Browser and media limitations
- Codec detection uses container markers and may not identify every stream.
- Browser APIs do not reliably expose exact FPS, stream bitrate, audio channels or creation tags.
- Corrupt or browser-unsupported files may fail inspection.
How local processing works
Work stays in this browser tab. Your files are not uploaded to Tubelexity or a processing server. Only local browser metadata and bounded file-header reads are used; FFmpeg is not loaded.
Frequently asked questions
Can I view video metadata without uploading?
Yes. Inspection reads the selected file in this browser tab.
Why is FPS shown as unavailable?
Browser-native metadata does not consistently expose encoded frame rate.
Can I export the report?
Yes. Download a TXT or JSON report or copy the readable text.
Does this show creation date?
Only if reliably detectable; this version does not infer creation date from the file name or operating system.