Image Dimension Checker

Upload an image to see its exact pixel dimensions, file size, format, aspect ratio, and DPI when available. Everything happens locally in your browser.

๐Ÿ”’ Processed on your device ยท No upload ยท No account ยท No watermark

Read the measurements stored in an image file

Open an image to see its width and height in pixels, aspect ratio, format and file size. The tool also reports DPI metadata when it can find a supported value. Pixel dimensions describe the actual raster data; stored DPI is mainly a print-size hint and does not add detail or control how every application prints the image.

Check requirements before uploading or printing

  • Verify pixel requirements for a form or platform
  • Inspect stored DPI before planning a print size
  • Compare the image aspect ratio with a required frame
  • Confirm file size before an upload with a limit

Frequently asked questions

Why does DPI show as "not found" for some images?
Many screenshots and web images do not store a DPI tag. Its absence does not mean the image lacks pixels; choose a print size from the pixel dimensions and the resolution your output requires.
What's the difference between pixel dimensions and DPI?
Pixel dimensions are the imageโ€™s actual width and height in samples. DPI metadata suggests how many of those pixels should cover one printed inch. Changing only that tag can alter the suggested print size without changing image detail.
Is my image uploaded anywhere?
No. JavaScript reads the image and its supported metadata locally.
What formats are supported?
The browser can inspect JPG, PNG, WEBP, GIF and other formats it decodes. DPI detection in this version is limited to supported JPEG and PNG metadata.

๐Ÿ“– Want the full picture? Read our guide: How to check an image's dimensions and resolution online

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