Video Metadata Viewer
Instantly check resolution, duration, aspect ratio, and more — directly in your browser.
🔒 Your files never leave your browser. All processing happens locally.
Drop a video file here or click to browse
Supports MP4, WebM, MOV, AVI, MKV and more
How to Use
- Click the drop zone or drag and drop your video file.
- The tool immediately reads the video metadata using your browser's native API — no upload happens.
- View resolution, duration, aspect ratio, file size, and estimated frame rate in the dashboard.
- Click 'Copy All Metadata' to copy the info as formatted text, or 'Show Raw JSON' for developer use.
Features
- 100% browser-based — no server, no upload, complete privacy.
- Instant results — metadata appears as soon as the video loads.
- Aspect ratio auto-calculation with simplified fraction (e.g. 16:9, 4:3).
- File size displayed in MB and bytes.
- Copy metadata as text or JSON for documentation and bug reports.
- Works offline — once the page loads, no internet connection is required.
Use Cases
- Video editors verifying source footage specs before editing.
- Developers checking video dimensions and duration for embedding or streaming decisions.
- Content creators confirming aspect ratio before uploading to YouTube, TikTok, or Instagram.
- QA testers documenting video file properties for bug reports.
- Students and researchers analyzing video assets for academic projects.
FAQ
Does this tool upload my video to a server?
No. Everything runs in your browser using the HTML5 Video API. Your video file never leaves your device.
What video formats are supported?
Any format your browser supports natively: MP4 (H.264/H.265), WebM (VP8/VP9), MOV, and in some browsers AVI and MKV.
How is the aspect ratio calculated?
Width and height are divided by their Greatest Common Divisor (GCD) to produce the simplest ratio. For example, 1920×1080 becomes 16:9.
Can I see codec or bitrate information?
The browser's native Video API provides resolution, duration, and file size. Codec and bitrate require deeper analysis not yet universally available in all browsers.