Unifier is an excellent tool to convert a batch of plain text or html files in various characters set encoding to Unicode or UTF-8 encoding. The most significant feature of Unifier is that it can analysis the content of HTML, ASP and PHP files during conversion. Unifier will add or update the character-set Meta Tag inside HTML Header. Therefore, it is not necessary to manually edit the converted HTML files. It is an extremely powerful feature. The download is a functional evaluation version. Simple tutorials are included to demonstrate the features of Unifier.