Image Viewer is a multi-frame (animated) image viewer with real-time interactive pan and zoom viewing that uses the GTK+ toolkit and Imlib. It is capable of opening and saving to any image format supported by Imlib. It features screenshots (screen capture), crop, resizing, print, fullscreen display, display on the desktop (root window), animation (creating animated GIFs), color leveling, drawing font/text strings, and editing image header information.
Perso can handle different types of identity card numbers (e.g. German/Austrian ID-card and passport). It can check the numbers for correctness using the "7-3-1"-checksum algorithm. Also it can extract information from the numbers (e.g. birthday) or generate example numbers using custom values.
HyperSQL is like the doxygen program with Javadoc added, but for SQL. It hypermaps SQL views, packages, procedures, and functions to HTML source code listings, and it shows all the code locations where these are used. You can use JavaDoc-style comments for documentation and even embed UnitTests with them.
XLocate greatly extends the usability of standard Linux slocate or GNU locate utilities. It allows for instant search of fixed strings or regexps in file names from local and remote, mounted or unmounted filesystems, as well as any number of memory sticks, removable drives, CD-ROMs, and data DVDs. It compiles natively on Qt4 and Qt3, without Qt3 compatibility required for the former.