Image Dimensions Checker
Check width, height, aspect ratio, orientation and DPI — one image or a whole batch.
Processed entirely in your browser. Your image is never uploaded to a server.
- Just the dimensions, no editor.
- Aspect ratio and orientation worked out for you.
- Add several images at once and see which ones match a target ratio (e.g. 16:9), with a CSV export.
- Reads JPG, PNG, WebP, AVIF, GIF and TIFF.
- Runs in your browser.
Why this is private
- Processed entirely in your browser. Your image is never uploaded to a server.
- Open your browser's DevTools → Network tab while using this tool — you won't see a request carrying your input, because it never leaves your device.
- Nothing you enter is uploaded to a server or shared with us — the processing happens entirely on your device.
Overview
Shows an image's pixel width and height, aspect ratio, orientation, megapixels, DPI (if set), format and file size — the quick facts designers and developers need. Add several images to check them as a batch, optionally against a target aspect ratio, with a CSV export.
How to use it
- 1Add one image, or several to check them as a batch.
- 2Optionally enter a target ratio like 16:9 to see which images match.
- 3Read the values, or export the batch to CSV.
Frequently asked questions
What people use it for
Check an image meets an upload specConfirm width, height and aspect ratio match what a form, marketplace or ad platform requires.
Audit a folder of product photos for a consistent ratioDrop in the whole batch and enter your target ratio to instantly see which images don't match, instead of checking each one by hand.
Find the aspect ratio for a cropGet the simplified ratio so you can crop or resize another image to match.
Confirm a resize workedVerify the output dimensions after resizing or exporting from another tool.
Related guides
- How to resize a photo and signature for online formsApplication portals want the photo and signature at exact pixel sizes and tiny file sizes. Here's how to hit both without an app.
- How to compress images for the web without them looking badWhy images make pages slow, how much quality you can drop before anyone notices, and a repeatable way to hit a size target.
- How to resize an image without losing qualityWhat 'without losing quality' really means when you resize, why enlarging is different from shrinking, and how to keep proportions intact.
- JPG, PNG or WebP: which image format should you use?A practical guide to picking an image format — what each one is good and bad at, and when to convert.
Related tools
All image toolsImage Metadata ViewerSee an image's dimensions, format, EXIF, camera info and GPS location.Resize ImageResize images to exact pixel dimensions or a percentage — one image or a whole batch.Image Size CalculatorEstimate a real JPG/PNG/WebP file size, or the raw uncompressed size, from dimensions.Image DPI CalculatorCalculate print size or DPI for a given image — upload it to auto-fill the pixel dimensions.
Ready to use Image Dimensions Checker?
Image Dimensions Checker