Difference between XSD and XSLT ?

Difference between XSD and XSLT

XSLT is a declarative programming language, you write an XSLT stylesheet to transform XML to HTML or XML or plain text.

XSD is a schema language, you use it to define the possible structure and contents of an XML format. A validating parser can then check whether an XML instance document conforms to an XSD schema or a set of schemas.