Instiki is a basic Wiki clone so pretty and easy to set up, you’ll wonder if it’s really a wiki. Runs on Ruby on Rails and focuses on portability and stability. Supports file uploads, PDF export, RSS, multiple users and password protection. Some use Instiki as a CMS - Content Management System because of its ability to export static pages. Instiki runs on any operating system and is open source under the GPL.
Instiki only relies on Ruby—the sole external dependency (it includes all other dependencies). Any OS that can run Ruby can run Instiki – that includes Windows, Linux, Mac OS X and most known Unix flavors. Instiki on BeOS, Amiga OS, OS2, Zeta OS and support for various exotic Platforms is planned.
Instiki Maintainers: Matthias Tarasiewicz (parasew), Jacques Distler
Instiki creator: David Heinemeier Hansson