Batch Image Header Inspector
Professional-grade binary header analysis for PNG, JPG, WebP, and more. Inspect magic numbers, file structure, and metadata chunks in bulk with high precision.
Drop your images here
Analyze binary headers for PNG, JPG, WebP, AVIF and more. Supports hundreds of files at once.
Try with Examples
Loaded Gallery
Header Inspector
Binary Header (First 256 Bytes)
Parsed Header Information
Inspection Queue
| Preview | File Info | Signature | Status | Action |
|---|
Select file to view details
Inspector Options
Highlight Signatures
Identify magic numbers in hex
Batch Apply
Sync settings for all images
Why Inspect Image Binary Headers?
Binary header analysis is critical for verifying file integrity, identifying hidden metadata, and debugging rendering issues in professional web and software development.
Signature Identification
Instantly identify "Magic Numbers" (e.g., 89 50 4E 47 for PNG) to verify that file extensions match their true internal format, preventing security risks.
Chunk & Marker Analysis
Examine PNG critical chunks (IHDR, IDAT, IEND) and JPEG markers (SOI, APP0, SOF0). Understand how your images are structured at the byte level.
Batch Forensic Workflow
Analyze entire directories of images in seconds. Perfect for digital forensic investigations, bulk asset verification, or identifying corrupted headers in large libraries.
How to Inspect Image Headers
Upload Your Files
Drag and drop your images. We support PNG, JPEG, WebP, AVIF, and BMP. No data is ever uploaded to our servers.
View Hex & ASCII
Examine the raw byte data in the hex viewer. Look for human-readable ASCII strings embedded in the file headers.
Export Analysis
Download detailed text or JSON reports of the header structure for your documentation or debugging logs.
Frequently Asked Questions
What are Magic Numbers?
Magic numbers are the first few bytes of a file that unique identify its format. For example, all PNG files start with the hex sequence "89 50 4E 47".
Can this tool detect corrupted images?
Yes! If the magic number is missing or the critical chunks (like IHDR in PNG) are malformed, this tool will highlight those discrepancies in the analysis.
Is my binary data safe?
Absolutely. Like all tools on batchpngtools.com, the inspection happens entirely within your browser using the File API. Your raw binary data never leaves your device.