grunt-sizediff is a Grunt task to diff file sizes between a current git branch and a branch/commit. It helps you keep an eye on your project size changes.
Comparator Tools is a PHP implementation of Java's Comparable interface. It allows objects to be sorted and provides other useful functions for comparison.
VDT (Visual Disk Test) performs various I/O tests on files and devices such as whole hard disks, partitions, and logical volumes. It provides visual feedback on screen while offering a broad selection of addressing methods and test area selection.
An encrypted mail system.
An interactive Web spreadsheet allowing concurrent table editing.