Should you cut guitar strings?
The tension will flick the strings and may potentially injure you. After loosening your guitar strings, it's time to cut them! Don't cut them near the bridge or the nut. You will have trouble removing them, and the sharp cut end may cause injury.
Do you need wire cutters to change guitar strings?
You may or may not need a tuner (How To Tune A Guitar/Best Guitar Tuner), but you'll definitely need a wire cutter and a string winder. Your string choices are down to you. When you start to restring the acoustic guitar, you'll need to start by unwinding the string tension completely.