Zsteg Forensic Tool

Analyze PNG and BMP images for hidden data using zsteg algorithm directly in your browser

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< 15ms

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About This Tool

This online zsteg tool allows you to detect hidden data, LSB steganography, and extract metadata from PNG and BMP image files. Upload an image and select analysis options to identify potential hidden information embedded using steganography techniques. The tool processes images server-side using the zsteg algorithm and provides detailed analysis results.

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How to Use

Upload a PNG or BMP image file using the file selector or drag-and-drop area
Select analysis options (extract data, check all bit planes, extract strings)
Click 'Analyze Image' to process the file
View detailed results including found data, metadata, and analysis statistics

Frequently Asked Questions

Find Quick Answers

What file formats does this tool support?

The tool supports PNG and BMP image formats, which are the formats compatible with the zsteg algorithm.

What is zsteg and what does it detect?

Zsteg is a steganography detection tool that analyzes PNG and BMP images for hidden data embedded using LSB (Least Significant Bit) steganography techniques.

Is my uploaded image stored on your servers?

No, images are processed temporarily during analysis and are not permanently stored on our servers.

What analysis options should I select?

For comprehensive analysis, select 'Check all bit planes' and 'Extract strings'. For basic detection, just use the default 'Extract data' option.

Need to run multiple calculations?

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