The campaign
A slash, a comma or a tab all separate the pair, so a line pasted from a spreadsheet works.
Both on by default, and both are reported when they change something. Analytics
platforms treat Email and email as two different sources — the campaign then
reports as two halves, and nothing warns you.
Your links
Put the page you are linking to at the top, and one channel per line.
The address is read with the browser's own URL parser, so the parameters land before any # and
replace any that were already there. Built in this browser: nothing is uploaded and nothing is stored.
The UTM Link Builder needs JavaScript: the links are assembled in this browser, which is why the campaign you are planning never has to be sent anywhere. With JavaScript switched off there is nothing to do the work.