UTM Builder for URLs

You have quite a few options on using a UTM builder.

My favourite (if you use Google Chrome as your preferred search engine): link

Google chrome UTM builder plugin

Google’s official UTM builder: https://support.google.com/analytics/answer/1033867?hl=en

And Raven Tools have a clean page for it too: https://raventools.com/marketing-reports/google-analytics/url-builder/