I am not able to download the DiameterJ plugin from the ImageJ wiki page. The link on the web page (https://imagej.net/images/6/65/DiameterJ_Fiji-_1-018.zip) keeps providing an error message when I go to this address in my web browser (screenshot attached). How can I fix this and download the DiameterJ plugin? Thanks!
Welcome to the forum.
It appears to be a different version, but may still suit your needs.