Microsoft SharePoint Designer (SPD), formerly known as Microsoft Office SharePoint Designer, is a discontinued HTML editor freeware for creating or modifying Microsoft SharePoint sites, workflows and web pages. It is a part of Microsoft SharePoint family of products. SharePoint Designer 2007 is a part of Microsoft Office 2007 family, but is not included in any of the Microsoft Office suites. SharePoint Designer 2013 is the last version of this product.

External links:

• https://support.office.com/en-us/article/introducing-sharepoint-designer-66bf58fe-daeb-4fa6-ae84-fd600e0005c1