[gregingelmo]

Use Vim, it's the best diff tool by a long shot. Syntax highlighting, side-by-side diffs, and code folding (when large contiguous sections are equal)

vimdiff <(curl -s "https://httpbin.org/get") <(curl -s "https://httpbin.org/get?show_env=1")

It takes some getting used to but once you go vimdiff you'll never go back.