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Image Format Detector

Identify a supported image format from its file signature and browser MIME type. Free to use, with no account required.

Inspect an image file

Choose a supported raster image. Where supported, image processing happens locally in your browser.

How to use image format detector

  1. Choose a supported image file.
  2. Compare its detected file signature, MIME type and filename extension.
  3. Reset the tool to check another image.

Where supported, image processing happens locally in your browser. Your files are not permanently stored on QuickQR servers.

Key features

  • Simple, responsive controls with a preview before you download.
  • Image processing runs in your browser; no image account or server upload is required.
  • Designed for supported image formats and modern desktop and mobile browsers.

Frequently asked questions

What does Image Format Detector do?

Identify a supported image format from its file signature and browser MIME type.

Are my image files stored on QuickQR?

Where supported, image processing happens locally in your browser. Your files are not permanently stored on QuickQR servers.

Can I use this image tool on a phone?

Yes. You can choose or capture an image on a supported mobile browser and use the touch-friendly controls.