Guildmania is a World of Warcraft guild management tool designed to be a simple, yet user-friendly alternative to the use of Excel spreadsheets and/or Access databases for guild management and raid planning. It promises to eventually grow into something that can be as useful as certain paid and online alternatives to easier guild management and/or raid planning.
It is a desktop application unlike other guild management systems which are available online, and requires .NET Framework 3.5 to run. It will only run on Windows, but Mono Framework development for Mac/Linux users is on the to-do list of the developer(s).
Guildmania is designed with casual to hardcore PVE raid guilds in mind. At this time it is still in alpha stages and many features are either incomplete or not implemented.