There are
many popular XML XSLT editors available in the market. A simple search
on a good search engine would reveal you a lot of such editors. The
most popular among the XML XSLT editors is the XMLSpy.
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This
comes in different versions like Professional and Enterprise editions.
The features available in this editor make it the undeniable choice
for the users.
Checking
the well-formedness of an XML document, validating an XML document against
a DTD, generating a DTD form an XML document and vice versa, working
with an XSLT in separate tabs are some of the features that you may
like in such editors.
Xselerator
is another XML editor that is used by many developers. Stylus Studio
is an XML editor that has similar features of XMLSpy where you can edit
a document in different views. Graphical, code, and tree view are presented
for the XML documents.
Cooktop
is a popular XML editor that is used to edit DTD, XSLT, and XML documents.
You can find a list of XML editors in the w3.org website.