PurpleWiki is a WikiWikiWeb implementation that adds Purple Numbers to paragraphs, headers, list items, and other fine-grained elements on a Wiki page. These numbers can be used to link to these elements.

Purple is a small suite of quickly hacked tools inspired by Doug Engelbart's attempt to bootstrap the addressing features of his Augment system onto HTML pages. Its purpose is simple: produce HTML documents that can be addressed at the paragraph level. It does this by automatically creating name anchors with static and hierarchical addresses at the beginning of each text node, and by displaying these addresses as links at the end of each text node.

RemoteWikiURL: http://purplewiki.blueoxen.net/cgi-bin/wiki.pl

Purple numbers support was also added to Zwiki, see PurpleNumbers.