Free Image Dimensions Checker
This free image dimensions checker tells you the width and height in pixels, the file format, the file size, the aspect ratio and the colour mode of any picture. Upload a file up to 8 MB or paste a public image URL. It also summarises camera data from EXIF when the file has it. Nothing you check is stored on our server.
Image Dimensions Checker
Images
About this tool
Image size is one of the first things to check when a page loads slowly or a picture looks wrong. A banner that is 4000 pixels wide in a 700 pixel column wastes bandwidth, a logo of 90 pixels looks blurry when stretched, and an upload form that asks for at least 1200 pixels needs proof. Drop the file here or paste its address, and the facts appear in one list.
The report shows width and height, the aspect ratio such as 16:9, total megapixels, file size and format. Colour mode tells you whether the file is RGB, grayscale, CMYK or uses a palette, and whether it can have transparency or is animated. If the file has EXIF data from a camera or phone, you also see the make, model, date and exposure, and whether a GPS location is embedded, which you may want to remove before sharing.
For a URL, our server downloads the image once to measure it, with a limit of 8 MB and only for public addresses. The tool reads the file header, so it works even on very large pictures. It reports what is in the file, not what a browser shows after CSS scaling. For a full list of every EXIF tag, use the EXIF data viewer, and to remove it, use the EXIF data remover.
Frequently asked questions
What does the colour mode mean?
RGB is the normal mode for screens. Grayscale holds only shades of gray. CMYK is a print mode that browsers often show with wrong colours, so convert it to RGB for the web. Indexed or palette files use up to 256 colours, as in many GIFs and small PNGs.
How do I find the size of an image on a web page?
Paste the direct address of the image, which usually ends in .jpg, .png or .webp, into the URL field. In most browsers you can get it by right clicking the picture and copying the image address. The tool then measures the real file, not the size it is displayed at.
Why is the size different from what I see on the page?
Pages often scale pictures with CSS or HTML attributes, so a 2000 pixel file can be shown at 500 pixels. The file itself stays 2000 pixels wide and is still downloaded in full. A big gap between file size and display size is a common cause of slow pages.
Can this tool read SVG or other formats?
It reads the formats PHP can measure directly, which include JPG, PNG, GIF, WebP, BMP, TIFF, ICO and AVIF. SVG is vector art without fixed pixels, so it has no width and height in the same sense and is not measured here.
Is the image I check stored anywhere?
No. An uploaded file is held in memory while it is read and discarded when the page finishes loading. For a URL, the image is downloaded for the check and not kept. The tool does not save the picture, the address or the results on our server.