I don't know what you mean by WYSIWYG in relation to XSL, but take a
look at Oxygen/XML. (I have no connection with the company :-)  I use it
daily and am very happy with it, especially the interactive debugger.
You can download a 30-day trial from their website.

> -----Original Message-----
> From: Senthilkumaravelan K [mailto:skumaravelan@xxxxxxxxxxxxxx]
> Sent: Tuesday, February 05, 2008 8:08 PM
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  WYSIWYG XSLT editor
>
> Hi All,
> We are looking for web based  WYSIWYG XSLT editor  authoring tool.
> Could anyone in the group have aware of the product available in the
> market.
>
> We are looking for a product which does not require any programming
> expertise.