The lightsaber, sometimes referred to as a laser sword, was a weapon used by the Jedi, the Sith, and other Force-sensitives. Lightsabers consisted of a plasma blade, powered by a kyber crystal, that was emitted from a usually metal hilt. It was a weapon that required skill and training, and was greatly enhanced when used in conjunction with the Force. Though also used by the Sith, the lightsaber was synonymous with the Jedi, with some in the galaxy believing only Jedi used lightsabers.

Lightsabers were generally used for both offense and defense. A lightsaber could cut through virtually anything, from enemies to blast doors. The only ways to block the incoming attack of a lightsaber was with a weapon made with material that conducts energy, such as an electrostaff, Z6 riot control baton, or simply another lightsaber. When used defensively, a Force-sensitive could deflect blaster bolts with a lightsaber, and with skill, could even reflect the shots back toward the shooter or some other target. Experienced Jedi could even employ their lightsabers to absorb Force lightning. Most practitioners used one single-bladed lightsaber, though some used double-bladed lightsabers or even multiple lightsabers at once.

Lightsaber combat was divided into seven Forms: Form I, Form II, Form III, Form IV, Form V, Form VI and Form VII.