VideoFrames
Drop one or many videos.
Choose up to 20 local files. Each is opened in turn with a temporary URL and released before the next one starts.
THE FACTS, BEFORE THE EDIT
Resolution Checker
Dimensions, aspect ratio, duration, file size and overall bitrate — read locally and exportable as JSON.
DROP ONE OR MANY
Know the shape of your video.
Resolution, aspect ratio, duration, file size and overall bitrate — read by your browser, never uploaded.
Up to 20 files · Formats your browser can decode
No videos read yet.
Add a file above to see its browser-reported facts.THREE QUICK STEPS
Measure without uploading.
Let the browser report.
Dimensions and duration come from the decoded media track; file size comes from your file. No values are estimated or invented.
Keep a JSON record.
Download a report with names, dimensions, aspect ratio, orientation, megapixels, duration, size and overall bitrate.
WHAT YOU CAN CHECK
Useful facts, honestly sourced.
Resolution & aspect.
Pixel width and height, reduced to a familiar ratio such as 16:9 or 9:16, plus orientation and megapixels.
Duration & size.
The duration the browser can decode and the exact encoded file size, shown together so a long file never looks small by accident.
Overall bitrate.
File size × 8 ÷ duration. It is the whole-file bitrate, not a separate video-stream measurement, and the label says so.
A FEW GOOD QUESTIONS
Before you trust a number.
Where do the numbers come from?
Width, height and duration are reported by your browser after it decodes the video track. File size and MIME type come from the file itself. Nothing is estimated from the filename.
Why is the codec not shown?
Browsers do not expose codec details reliably across formats. Rather than guess from a container name, this tool leaves codec, frame rate and colour information out of the report.
What does the JSON report contain?
A tool name, version, generation time, file count and one object per readable file: name, MIME type, size in bytes, width, height, aspect ratio, orientation, megapixels, duration in seconds and overall bitrate in kbps.
Why did a file fail to read?
The browser could not decode it, the file is damaged, or its duration is not finite. AVI, MOV, HEVC and MKV support varies by browser and operating system, regardless of the file extension.
Are my videos uploaded?
No. Each file is opened through a temporary local URL and released after its metadata is read. There is no media upload endpoint or account.