Video File Info
- Free
- No upload
- No watermark
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 10MB engine download and returns results the moment your file loads. Everything is read on your device; the file is never uploaded to any server.
Step by step
How to video file info
- 01
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.
- 02
Read the specs
See resolution, duration, aspect ratio, frame rate and an estimated bitrate laid out clearly.
- 03
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.
In depth
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 ~10MB 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.
- No file is ever uploaded to a server
- Works offline after the first visit
- No account, no watermark, no limits
A little more clarity
Frequently asked questions
01Do 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 ~10MB engine download and no processing wait — the specs appear as soon as the file loads.
02What 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.
03What 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.
04Why 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.
05What 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.
06It 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.
07Is 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.
Guides
Further reading
- Guide4 min readHow to convert MOV to MP4 (iPhone videos on Windows)You sent an iPhone video to someone on Windows and it would not open. The culprit is Apple's MOV container and the HEVC codec inside it. Here is why, and the one-step fix.Read the guide
- Guide5 min readHow to reduce video file size without losing qualityMost videos are far bigger than they need to be, carrying detail no screen shows and bitrate no eye notices. Here is how to cut a file down while keeping the picture that actually matters.Read the guide
- Guide5 min readHow to extract MP3 audio from any videoSometimes you only want the sound: the talk from a recorded lecture, the music from a clip, the audio from a meeting. Here is how to lift a clean MP3 out of any video without uploading it.Read the guide
Keep going
Related video tools
More tools, same promise.
123 tools for images, video, audio and subtitles — every one of them runs on your device, and a result can go straight into the next.
- Free forever
- No sign-up
- Nothing uploaded