The following list of plugins to import content from other CMS platforms is maintained by WordPress.
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Blogger Install the Blogger importer to import posts, comments, and users from a Blogger blog. [ Plugin Page ] [ Download ]
Categories and Tags Converter Install the category/tag converter to convert existing categories to tags or tags to categories, selectively. [ Plugin Page ] [ Download ]
LiveJournal Install the LiveJournal importer to import posts from LiveJournal using their API. [ Plugin Page ] [ Download ]
Movable Type and TypePad Install the Movable Type importer to import posts and comments from a Movable Type or TypePad blog. [ Plugin Page ] [ Download ]
Blogroll Install the blogroll importer to import links in OPML format. [ Plugin Page ] [ Download ]
RSS Install the RSS importer to import posts from an RSS feed. [ Plugin Page ] [ Download ]
Tumblr Install the Tumblr importer to import posts & media from Tumblr using their API. [ Plugin Page ] [ Download ]
WordPress Install the WordPress importer to import posts, pages, comments, custom fields, categories, and tags from a WordPress export file. [ Plugin Page ] [ Download ]