A Stick figure animation program. It is similar to Pivot but has much wider variety of animation features, such as keyframes.
Tupi is a fork of the KTooN project — a design and authoring tool for digital artists interested in 2D animation, offering an interface experience appropriate for people of all ages.
nanimstudio is graphical tool for editing 2D animations. It generates nanim files, an optimized format for games, and can import and export GIF animations and spritesheets.
An offline application for Wikipedia (and other wikis).
Software to decapsulate traffic encapsulated within IPIP, GRE, and ESP protocols.