Is There an Automatic Way to Convert a Steam Wishlist to Text?

Ctrl-A then Ctrl-C then Ctrl-V

nope but u can copy and paste ? max 1 minute workf if u have 20 games in wishlist

Maybe try disabling images in your browser so you'd get pure text and copy that. It will probably require some editing but not nearly as much as with the default view.

Because it's SO hard to type it out (unless you're one of those freaks that has literally every steam game on their wishlist)

I can't find on Steam Web API documentation about Games Wishlist, but it seems that Steamgifts recognize which games are on the Wishlist. So yes, it's possible to write a program, but I don't know how to get the right data.

Im thinking of going to "Sync Account" on this site, then scrolling top to your wishlist area, it might show all of your wishlist items.

I just wrote a Userscript for you: Steam Wishlist to Text
You get a popup with a list of names separated by "|".

EDIT March 2017: Version 1.1.0 is out now.
It now supports larger wishlists.
You now find the list of games on the bottom of the site, in a separate text box. :3

EDIT APRIL 2017 Updated the download link.