Image Format Detector

Identify Any Image File with Our Format Detector

Have you ever encountered a file that won't open, or an image with a missing or incorrect file extension? Our online image format detector is designed to solve this mystery. Unlike your operating system, which usually relies on the filename extension (like .jpg or .png), our tool looks deep into the file's "magic numbers"—the unique digital signature at the very beginning of the data—to identify its true format.

How File Detection Works

Every file format has a unique set of bytes at the start of its data stream. For example, all JPEG files start with the hex sequence `FF D8 FF`. Our tool reads the first few bytes of your uploaded file and matches them against a comprehensive database of known image signatures. This allows us to tell you exactly what the file is, regardless of what the filename says.

Supported Formats

Our detector can identify a wide range of image and document formats, including:

• JPEG / JPG: The most common format for digital photography.
• PNG: High-quality graphics with transparency.
• GIF: Animated and static images.
• WebP: Modern web-optimized format from Google.
• BMP: Standard Windows bitmap format.
• TIFF: Professional high-quality publishing format.
• PDF: Document format that often contains embedded images.
• SVG: Vector graphics format.

Why Use This Tool?

• Troubleshoot Broken Files: Find out if a file is actually an image or something else entirely.
• Security Check: Ensure that a file isn't a malicious script disguised as a photo.
• Correct Extensions: If you've recovered lost files that are named randomly, our tool helps you give them the correct extension so they can be opened.
• Total Privacy: Just like our other tools, the detection happens entirely in your browser. Your files are never sent to our servers.