Image Dimensions Inspector

How do you check the pixel dimensions and file size of multiple images at once?

Verifying image dimensions before uploading to a website, resizing for print, or handing off to a developer usually means opening each file individually. This tool reads the width, height, aspect ratio, file type, and file size of multiple images in one pass and produces a CSV summary you can sort and filter.

How to use it

Select one or more image files using the file picker and click Inspect images. The tool reads each file in your browser, extracts its pixel dimensions and metadata, and displays the results as a table. You can download the data as a CSV with columns for filename, width, height, aspect ratio, file type, and size in bytes. Everything is processed in your browser and never uploaded to or stored by this site.

Common uses

Use this tool to audit a batch of images before a web upload, to check that exported assets meet a required pixel size, or to find oversized files that should be compressed before use. The CSV output makes it easy to sort by dimension or file size across a large set of images in one view.

Frequently asked questions

What image formats does it support?

Any image format your browser can render, including PNG, JPG, GIF, WebP, and SVG. Formats the browser cannot decode will report an error for that file and continue with the rest.

Does the tool change or resize the images?

No. It only reads and reports the dimensions and metadata. The original files are not modified in any way.

Important

This tool provides estimates and general-purpose documents, not financial, tax, legal, or professional advice. Verify important results before relying on them.

Support

Problem with this tool or suggestions for improvement? Please email support@niftyutilities.com.