MediaSniper is a simple program for downloading media files from popular websites (e.g. YouTube, Google Video). Just provide the webpage URL and MediaSniper will automatically identify the media files on it for downloading. Runs on any OS with the Java Runtime Environment (JRE 6+). MediaSniper is free software written in Java and released under the GNU GPL license (version 3). More information available at http://mediasniper.sourceforge.net/

Simple command-line utility for renaming files using an intuitive but powerful syntax (like regex, only much easier). Perform string operations (e.g. case conversions, rearrangements of substrings), arithmetic operations (e.g. on numbers in the file name), enumerate files (e.g. by name, size, time, or other attributes), insert time stamps, and many more! Free Java software. Visit http://renamewand.sourceforge.net/ for more information.

Simple command-line incremental backup tool for directories. Create compressed point-in-time snapshots, adding only new or modified files and directories at each time. Uses a catalog so snapshots can be added without access to previous ZIP volumes. Files are automatically numbered with a timestamp. Runs on any OS with the Java Runtime Environment (JRE 6+). Free GNU GPL software. Visit http://zipsnap.sourceforge.net/ for more information.