LibRaw is a library for reading RAW files obtained from digital photo cameras (CRW/CR2, NEF, RAF, DNG, and others). LibRaw is based on the source codes of the dcraw utility, though some of the drawbacks of dcraw have been eliminated. The users of the library are provided with an API to be used when writing their software programs.
RPhoto is a handy image editor to simplify cropping of digital camera pictures and avoid white borders introduced by incorrect height/width ratios. It also has lossless rotate and flip features, as well as a unique way to rectify a bad angle by only drawing a horizontal or vertical line.
SortImagesGUI is a Java Swing application for sorting still images from digital cameras by capture date from the EXIF header. The images are sorted into subfolders by year, month, and day. Most of the EXIF-metadata are inserted into a MySQL database with the MD5 sum of the image file as a primary key. This makes it easy to find out if an image already exists.
Fotoon is an application that helps users manage and organize photos in an easy and fast way. It allows the creation of albums and sub-albums containing photos that can be labeled with tags in a drag-and-drop manner. Tags can be user-defined, if none can be found in the template collection. Photos can easily be selected according to several criteria (tags, legends, descriptions, etc.). Albums are saved in an XML format.
jBrout is a photo manager. It can manage albums and photos, tag photos with IPTC keywords, use internal JPEG thumbnails, add comments to photos and albums, losslessly rotate JPEG files and internal JPEG thumbnails, and use EXIF info. It uses plugins to add a variety of features such as exporting to HTML, acting like an HTTP server, and exporting to email. It works without a database, and has been tested with a collection of over 20,000 photos.