Image Format Info — Free Online Image Metadata Viewer | GadgetSurge

About Image Format Info

Understanding an image's technical properties is essential for web development, design workflows, and troubleshooting. This tool reads and displays all key technical metadata from any uploaded image file.

The information displayed includes: image format (PNG, JPG, WebP, GIF, etc.), dimensions (width × height in pixels), file size, colour depth (bits per pixel), whether the image has transparency (alpha channel), aspect ratio, and EXIF metadata where available (camera model, capture date, GPS coordinates for photos).

All inspection runs entirely in your browser — images are never uploaded to a server.

How to Use Image Format Info

1. Upload any image file by clicking "Upload Image".
2. The tool instantly displays format, dimensions, file size, colour depth, and other metadata.
3. No conversion or download needed — upload to inspect only.

Common Use Cases

• Format identification: Identify the actual format of an image file regardless of its file extension.
• Transparency detection: Check whether a PNG image actually has transparent pixels or is fully opaque.
• EXIF data inspection: View camera metadata, capture date, and GPS location data embedded in JPEG photos.
• Asset auditing: Audit image assets to identify those that are larger than expected or in unexpected formats.
• Pre-upload verification: Verify image properties before uploading to platforms with specific format or dimension requirements.

Frequently Asked Questions

What metadata does the tool display?

Format (PNG, JPG, WebP, etc.), width and height in pixels, file size, colour depth (bits per pixel), alpha channel presence (transparency), aspect ratio, and EXIF data for JPEG files (camera model, date taken, GPS coordinates, exposure settings).

What is colour depth?

Colour depth (bits per pixel) determines how many colours can be represented. 8-bit: 256 colours (used in GIFs and indexed PNGs). 24-bit: 16.7 million colours (standard RGB). 32-bit: 16.7 million colours plus full transparency alpha channel (standard RGBA PNG). Most web images are 24-bit or 32-bit.

Can I see if an image has transparent pixels?

Yes. The tool detects whether the image has an alpha channel (which supports transparency). For PNG files, it checks whether any pixels are actually transparent rather than just whether the format supports transparency.

Is my image uploaded to a server?

No. All format inspection uses browser APIs and runs entirely on your device. Images never leave your browser.