Image Tools

Image Information

Shows basic facts about one image: width, height, format, file size, an alpha (transparency) guess and the width-to-height ratio. It reads the file in your browser and does not change it.

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Processed in your browser — your file is not uploaded.

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Up to 1 files

Image information:

  • Dimensions (width x height)
  • File size and format

How to Use

  1. 1Add one image by dropping it on the upload area or choosing it from your device.
  2. 2Click 'View Image Info'.
  3. 3Read the 'Image Details' panel: Width, Height, Format, Size, Alpha and Aspect Ratio.

About this tool

Updated

The six values it reports

Width, height, format, file size, an alpha guess and the aspect ratio, read from one image on your device.

Width and height come from decoding the image, so they are the true pixel dimensions rather than anything a file name or a preview claims. The aspect ratio is simply width divided by height, shown as a decimal: 1.78 is the usual widescreen shape, 1.00 is square, and anything below 1 is taller than it is wide. The file is only read — it is returned unchanged and nothing is written.

Two values to read with care

Format is your browser's guess from the file, and the alpha value is inferred from that guess rather than measured.

Format shows the type the browser assigns, such as image/jpeg. A file with a wrong or missing extension can therefore come back empty or unknown even though it opens fine. Alpha is a simple rule: PNG files are reported as having transparency and everything else is not. So a PNG with no transparent pixels still shows yes, and a WebP or GIF that genuinely has transparency shows no. Treat it as a hint about the format, not a measurement of the image.

It does not read EXIF or camera data

There is no camera model, date, GPS location, DPI or colour profile here — only the six values above.

That is a deliberate limit rather than an oversight, and it is worth stating because most tools called image information do read those tags. If you want that data gone before sharing a photo, Remove EXIF re-encodes the image without it. DPI in particular confuses people: it is a printing instruction stored in the file and has no effect on the pixel dimensions, which are what this tool reports and what matters on screen.

What it is actually useful for

Checking dimensions against an upload requirement before you waste a submission on the wrong size.

Plenty of forms demand a minimum width, a maximum file size or a specific shape, and finding out after a rejection is slow. Reading the numbers first tells you which tool you need next: Resize by Percentage or Image Resizer for dimensions, Image Compressor for a size limit, Aspect Ratio Converter for a required shape. It is a thirty-second check that saves a guess.

Features

  • One image per run
  • Width and height in pixels
  • Format, shown as the browser's file type (for example image/png)
  • File size in KB
  • Aspect ratio as a decimal number (width divided by height)
  • Reads the file in your browser and leaves it unchanged; nothing is uploaded

FAQ

Does it show EXIF, camera data, DPI or colour profile?

No. It shows only width, height, format, size, alpha and aspect ratio. It does not read EXIF tags, GPS, camera model, capture date, DPI or ICC colour profiles. If you want embedded metadata removed from a photo before you share it, use Remove EXIF.

How reliable is the Alpha value?

It is a rough guess based only on the file type: it says Yes for PNG files and No for everything else. A PNG with no transparent pixels will still show Yes, and a WebP or GIF that does have transparency will show No.

Is the 'Format' the real image format?

It is the file type your browser reports for the file, such as image/jpeg. If a file has the wrong extension, the value can be empty or show image/unknown.

Is my image uploaded?

No. The dimensions are read in your browser and the file stays on your device.

Related Tools

Remove EXIF

Drop EXIF and other embedded metadata by re-encoding one image in your browser.

Image Resizer

Resize up to 50 images to set pixel dimensions with contain, cover or stretch modes.

Aspect Ratio Converter

Change an image to 1:1, 4:3, 16:9, 3:2, 9:16 or 2:3 by cropping or padding.

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