Why exact dimensions matter
Knowing an image’s exact pixel dimensions helps you meet upload requirements for social media, ad platforms, and print specifications without guesswork.
Image Dimension Checker
Upload an image to instantly see its exact pixel dimensions and aspect ratio.
Upload file
Any image format
How it works
- 1
Upload or drop a file into the drop zone.
- 2
Review the preview or extracted details shown on the page.
- 3
Remove the file or choose another image when you are done.
Why use this tool
- Runs entirely in your browser — nothing is uploaded to a server.
- 100% free, no sign-up, no limits.
- The image is measured locally and never uploaded to a server.
- Works in any modern browser — no app install, no extension, no account.
How to use Image Dimension Checker
In Image Dimension Checker, add a file from your device. Processing stays in the browser for this tool; review what appears, then download or clear as needed.
Tips for better results
Use a representative sample file first. Very large files may be slower in-browser. Remove the file from the page when you finish if it is sensitive.
Privacy and offline-friendly processing
Whenever possible, Image Dimension Checker processes your data locally with JavaScript in this page. That means drafts, secrets, and unfinished work stay on your device by default. Prefer this workflow when you do not want to upload sensitive text, tokens, passwords, or files to a third-party service.
Frequently asked questions
Does this work for any image format?
Yes, it works with any format your browser can display, including JPEG, PNG, WebP, and GIF.
Is my image uploaded to check its size?
No, the dimensions are read locally in your browser — the file never leaves your device.
Is my data uploaded when I use this tool?
For most FlyUtils tools, no. Processing happens in your browser with JavaScript. If a tool ever needs a server, that will be stated clearly on the page.
Is Image Dimension Checker free to use?
Yes. Image Dimension Checker is free, with no sign-up and no artificial usage caps for normal personal and work use.
Does Image Dimension Checker work on mobile?
Yes. The page is mobile-first, so you can paste input, tweak options, and copy results from a phone or tablet.