📐 Image Dimension Checker
Check an image's technical details in one place: pixel dimensions, file size, format, aspect ratio, megapixels, orientation and colour depth where the browser can determine it.
Runs entirely in your browser. No upload, no account, no image stored anywhere.
📁 Drop up to 10 images here, or choose files
JPEG, PNG, WebP, BMP, GIF. Max 20.00 MB per file, 100 megapixels. Up to 10 files. Files are processed in your browser only — nothing is uploaded.
Choose imagesDetails are limited to what the browser can decode; fields such as DPI are not reliably stored in web images and are not invented. Animated images report the first frame.
How to use it
- Upload one or more images (up to 10).
- Read the table of dimensions and technical details for each.
- No image is uploaded or stored.
Supported formats and limitations
- Details are limited to what the browser can decode from the file; some fields (such as DPI) are not reliably stored in web images and are not invented.
- Animated images report the dimensions of the first frame.
- Limits: 20 MB per file, 100 megapixels, batch maximum 10 files where batch is offered.
Frequently asked questions
What is a megapixel?
Width multiplied by height, divided by one million. A 4000 × 3000 image is 12 megapixels.