For that, I'd just make a command-line interface. It'd be simple enough to slap a GUI on it if I had to, but for something that simple--and for something I'd be the only one using--a GUI would be overkill.
Well, okay, unless it was in JavaScript. I could probably write that in JavaScript as part of a static .html file, test-driven with jasmine, and then load it into a browser for the GUI.
"But whether the Constitution really be one thing, or another, this much is certain--that it has either authorized such a government as we have had, or has been powerless to prevent it. In either case, it is unfit to exist." --Lysander Spooner, 1867
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