Vanilla is an open-source, standards-compliant, multi-lingual, theme-able, pluggable discussion forum for the web.
With over 450 plugins so far, Vanilla is ideal for custom community solutions. Vanilla has been adopted by over 300,000 businesses, brands, and fans.
You can download and install Vanilla in minutes, or you can host it hassle-free at VanillaForums.com.