JPEGsnoop is a free software tool that decodes image files containing JPEG compressed images and provides detailed information about the file. It can also identify whether the image has been edited or determine its source. This portable tool is easy to use and offers a wealth of hidden information.

This tool opens various file types including .JPG, .THM, .AVI, .DNG, .PDF and easily extracts embedded JPEG files. Users can expect to receive an exhaustive report on countless details that include image quality, Huffman table decode, EXIF / IPTC metadata and much more.
Some of its major features are its ability to decode JPEG markers, display JPEG images, detect errors, parse PSD files, dissect IPTC formats, process images in batches and its optional command-line interface.
All in all, JPEGsnoop is a fantastic tool for those who work with images and want a detailed analysis of the images they're working with. It's an incredibly useful piece of software that provides a wealth of valuable information that can help users make informed decisions regarding their images.
Version 1.7.3:
- Fixed Win XP launch issue
- Improved error handling with missing User Database
- Fixed command-line filenames with leading '-'