Save Site as Template Link does not appear in Sharepoint

If the Save Site as Template link does not appear under the Look and Feel tab of site settings, then go to the site settings of the site that you want to save as a template and replace the page name to savetmpl.aspx.

for Example

Change http://ServerName/SiteName/_layouts/settings.aspx
to
http://ServerName/SiteName/_layouts/savetmpl.aspx