Video File Info
Processed locally in your browser — nothing is uploaded.
Quick answer
Video File Info reads a video’s technical specs — resolution, duration, aspect ratio, frame rate and bitrate — and shows them instantly. It uses the browser’s native video element to read metadata, so it needs NO 32MB engine download and returns results the moment your file loads. Everything is read on your device; the file is never uploaded to any server.
How to video file info
Drop in a video
Add an MP4, MOV, WebM or other browser-playable file. Its metadata is read on the spot — no engine to fetch, no processing.
Read the specs
See resolution, duration, aspect ratio, frame rate and an estimated bitrate laid out clearly.
Use the numbers
Use the specs to decide how to compress, resize or convert the file — or just to confirm what you have before sharing it.
Why does this need no engine download?
Reading a video’s basic properties does not require decoding the whole file. The browser’s native <video> element exposes the essentials — width, height and duration — as soon as it reads the file’s metadata header, and the bitrate follows from the file size and duration. Because that is a built-in browser feature, Video File Info is instant and needs none of the ~32MB ffmpeg engine the conversion tools rely on.
What do these numbers actually mean?
| Spec | What it is | Why it matters |
|---|---|---|
| Resolution | Pixel width × height, e.g. 1920×1080 | Sharpness and the size of the picture |
| Duration | Length in hours:minutes:seconds | Drives file size and how long tools take |
| Aspect ratio | Shape, e.g. 16:9, 9:16, 1:1 | Whether it fits a platform without bars |
| Frame rate (fps) | Frames shown per second, e.g. 30 | Smoothness of motion; 24/30/60 are common |
| Bitrate | Data per second, e.g. 8 Mbps | Quality-to-size ratio of the encoding |
Resolution is how many pixels make up each frame — 1280×720 is 720p, 1920×1080 is 1080p, 3840×2160 is 4K. Frame rate is how many of those frames play each second; film is 24, most phone video is 30 or 60. Bitrate is how many bits per second the file spends describing the video: at the same resolution, a higher bitrate means better quality and a bigger file, and an unusually low bitrate is why some videos look blocky.
What should you do with the specs?
The numbers point you to the right next tool. A 4K clip that is too large for email is a job for Resize Video or Compress Video. A 9:16 phone clip you need square goes to Crop Video. Want a still from it? Extract a Video Frame — also native, also no engine download. To pull just the sound, note the audio and use Video to MP3.
Is my file uploaded to read its info?
No, and there is no engine either. The browser reads the metadata from the local file directly on your device; nothing is sent anywhere. Open DevTools → Network, drop in a file, and you will see no upload and no engine download — the specs simply appear.
Your files never leave your device
Processed locally in your browser — nothing is uploaded. You can verify it yourself: open your browser’s developer tools, watch the Network tab, and use the tool — no upload request is ever made.
Frequently asked questions
Do I need to download anything to check a video’s info?
No. This tool reads metadata with the browser’s native video element, so there is no ~32MB engine download and no processing wait — the specs appear as soon as the file loads.
What does bitrate tell me?
Bitrate is the data used per second of video. At a given resolution, higher bitrate means better quality and a larger file. A low bitrate at high resolution is why a video can look blocky.
What is the difference between resolution and aspect ratio?
Resolution is the exact pixel count (e.g. 1920×1080). Aspect ratio is the shape those pixels form (16:9). Two videos can share an aspect ratio at different resolutions.
Why is the bitrate shown as an estimate?
Overall bitrate is derived from file size divided by duration, which is accurate for the whole file. Per-stream and variable bitrates can differ moment to moment, so the figure is a reliable average.
What frame rate is normal?
Film is 24 fps, most phone and web video is 30 fps, and smooth or slow-motion footage is 60 fps or higher. Any of these is normal; the number just tells you how fluid motion will look.
It cannot read my file — why?
The reader relies on browser-supported formats. Some MKV or AVI files use codecs the browser will not open; convert to MP4 first, then read its info.
Is my video sent to a server?
Never. Metadata is read locally with no upload and no engine download. You can verify the empty Network tab in developer tools.