Video tool / 04
Video Info Checker
Read a video's exact dimensions, duration, aspect ratio, size, and container type without uploading it.
Video Info Checker: TOEA asks the browser's own decoder for the video's intrinsic width, height, and duration, then derives the aspect ratio and reports the container type and size from the local file. Runs 100% locally in your browser with zero server file uploads.
- Category
- Video tools
- Runs
- In your browser
- Cost
- Free · no sign-up
- Availability
- Ready to use
Runs entirely in your browser
MP4, WebM, MOV, or any format this browser plays · up to 500 MB
Working out the bitrate yourself
The page cannot read the bitrate, but you can estimate the average: multiply the file size in megabytes by 8 and divide by the duration in seconds to get megabits per second, sound included. A 150 MB clip lasting two minutes averages 10 Mbps. For 1080p, 5–10 Mbps is typical for phone and camera footage, while streaming services typically deliver 1080p at a few megabits per second. A figure far above that is a candidate for compression.
Reading the dimensions and type
Common sizes have names: 1280 × 720 is 720p, 1920 × 1080 is 1080p or Full HD, 2560 × 1440 is 1440p, and 3840 × 2160 is 4K UHD. A vertical phone video reads the other way round, such as 1080 × 1920. Widths such as 1920 × 800 come from cinema-style 2.40:1 footage.
The MIME type comes from the file's extension as your system reports it, not from its contents. A .mov renamed to .mp4 shows as MP4 even though the file inside is unchanged.
How to use it
- Choose a video file.
- Inspect it locally.
- Read the dimension and file facts.
Privacy & limitations
The video is read straight from your device and never uploaded. Everything — decoding, resizing, and encoding — happens in this browser tab, so large files are limited by your own memory rather than an upload queue. Only what the browser decoder exposes is reported; container-level details such as codec profile and bitrate are not available to a web page.
Related tools
Frequently asked questions
Why is no codec or bitrate shown?
A web page can read the decoded picture and its dimensions, but browsers do not expose container-level codec or bitrate details to scripts.
Why does duration show as zero or unknown?
Some streamed or partially written files do not carry a duration in their header until fully buffered.
What does the aspect ratio mean?
It is width divided by height, so 1.7778:1 is the usual 16:9 and 1.0000:1 is square.
Is audio detection reliable?
Only partly. Browsers expose different, non-standard hints about audio tracks, so the answer can be inconclusive until the video plays.
Free tool · runs in your browser · no account required