Image Dimensions Checker
Check image width, height, aspect ratio, format and file size. Inspect one image or a batch in your browser and download the results as JSON.
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Your files are processed locally. The original file is kept unchanged. Choose your settings, create the result, and use the download button to save it.
About Image Dimensions Checker
Read the decoded pixel dimensions before choosing a resize or crop. The report also shows file size, format and simplified aspect ratio, helping you distinguish pixel dimensions from an upload limit measured in kilobytes.
How to use this tool
01 · Prepare your input
Choose your images from the device. Keep the batch within 50 files and 40 million pixels in total.
02 · Read the image report
Use Check dimensions to inspect decoded width, height, aspect ratio, format and original file size.
03 · Review the result
Review the results and download the JSON report if you need to keep a record.
Before you download.
What to know about Image Dimensions Checker.
Are pixel dimensions the same as KB size?
No. Dimensions describe the pixel grid. File size measures encoded bytes and also depends on format, compression and image content.
Are my files uploaded for processing?
No. File contents are processed in your browser. The site, codecs and any required models still need to load over the network; local results depend on your device and browser.