If you ever had trouble with WordPress generating non-valid RSS or Atom feeds, this is the plugin for you.
Full UTF-8 adds complete support for all the UTF-8 chars: 1 through 4 bytes long.
Without this plugin, WordPress only supports up to 3 bytes.
Easily Converts the WordPress database from any type of character set to UTF-8 character set.
This plugin will convert ISO-8859-1 data to UTF-8 data in a MySQL UTF-8 WordPress database where things at some stage went wrong.
"Force WaveDash" is a plugin to canonicalize some Unicode characters:
to force "WAVE DASH" characters other than "FULLWIDTH TILD".
This plugin will attempt to convert a wordpress or wordpress mu database with content in whatever character set to utf8
This plugin is designed to handle the broken characters that might appear on your blog posts, if their content is converted from/to UTF8 and ISO-8859-
RSS link for this tag.