Document Standards

Outline Processor Markup LanguageOutline Processor Markup Language

Outline Processor Markup Language Usage Statistics · Download List of All Websites using Outline Processor Markup Language

[url] provides a link to an OPML list. OPML (Outline Processor Markup Language) is an XML format for outlines. Originally developed by Radio UserLand as a native file format for an outliner application, it has since been adopted for other uses, the most common being to exchange lists of web feeds between web feed aggregators.