Image Dimension Checker
Upload an image and instantly see its width, height, aspect ratio, and file type - read locally in your browser.
Upload or drag an image below - its dimensions, aspect ratio, file size, and type appear instantly, read locally in your browser.
This file is read entirely in your browser - it is never uploaded to any server.
For calculating dimensions from a ratio (rather than reading them from a file), see the Image Aspect Ratio Calculator.
What Does This Tool Show?
The image's actual pixel width and height, its simplified aspect ratio, file size, and MIME type - all read directly from the file using your browser's own image-decoding capability.
Why Use This Tool?
Useful for quickly checking whether an image meets a platform's dimension requirements (like a specific social media image size) before uploading it anywhere.
How to Use It
- Upload or drag an image file.
- Review its width, height, aspect ratio, file size, and type - shown immediately.
Important Notes
Your image is read entirely in your browser using the File and Image APIs - it is never uploaded to any server.