Bad Peggy is described as 'Scans JPEG images for damage and blemishes, delivers instant visual results, helps detect and organize broken files, and lets users delete or move them' and is an app in the system & hardware category. There are three alternatives to Bad Peggy for Windows, Linux and Mac. The best Bad Peggy alternative is ExifTool, which is both free and Open Source. Other great apps like Bad Peggy are ExifToolGUI and JHOVE.
ExifTool is a platform-independent Perl library plus a command-line application for reading, writing and editing meta information in a wide variety of files.
Graphical user interface to ExifTool for reading and writing metadata in images.
JHOVE is a file format identification, validation and characterisation tool. It is implemented as a Java application and is usable on any Unix, Windows, or OS X platform with appropriate Java installation.
JPEG-hul module in JHOVE recognizes and validates the JPEG format. JPEG module knows 13 different error messages
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The command exiftool.exe -validate *.jpg can checks all jpg files in a folder for corruption