Mace Windu was born on the planet Haruun Kal. He was taken into the Jedi Order at six months old, where he began receiving training from Yoda. At an early age, Mace learned to see the future using the Force. In these visions, he saw the lightsaber he would one day build, bud did not build it until age 14, long after the other Jedi his age. He told the council he wanted the best possible parts for his saber. He received a special crystal from a mission on the planet of Hurikane that gives his blade its rare purple color.
Over the next decade and a half, Mace went on many missions that included his first visit to his homeworld, and one where he tracked down and defeated his parents' killer.
Mace created his own style of lightsaber combat, which he named Vaapad. He stated that his biggest flaw was that he enjoyed fighting. This is a dark side trait and it is very dangerous to a Jedi Master. He created Vaapad to channel this dark side energy into something positive. Mace even used some dark side-like force abilities, such as Force-crush and Force-grip. Windu was against Anakin Skywalker's acceptance into the Jedi Order; however, he later came to see that Skywalker was the Chosen One. Despite this revelation, it did not solidify his trust in the arrogant Anakin.
While Obi-Wan Kenobi, Anakin, and Padme Amidala were about to be executed on Geonosis, Mace brought a Jedi attack force instead of waiting for the Clone Army. On Geonosis, Master Windu engaged the bounty hunter Jango Fett in combat and killed him. He became a prominent leader in the Republic Army. Following the opening of the clone wars he gave up his title as Master of the Order to Yoda.
Mace Windu also engaged General Grievous in single combat and forced him to retreat, using force crush, a very dark move to compact the cyborg's armour around his lungs and giving him the wheezing cough that is shown in Star Wars III : Revenge of the Sith.
Mace Windu is thought to be the best swordman in the Republic, but what made Yoda better than him was his ability with the Force, although Mace Windu used a lot of Force powered strikes he doesn't use the Force that often in combat. Mace Windu also has a purple Republic starfighter.
Mace Windu had two apprentices named Sora Bulq and Depa Billaba, both turned to the dark side because when Mace Windu tried to show them Vaapad, which concentrated on strength and the use of the Force to induce the strength, they did not have the concentration on the light side like he did and both became which he later killed. After that Mace Windu did not teach the use of Vaapad or did not take on another apprentice, because they might try to imitate his style and turn to the dark side.
Mace Windu is a master of the Force technique known as Shatterpoint. This ability allows him to observe the weakness in any material and break it with a simple tap.
When it was discovered that Supreme Chancellor Palpatine was actually a Sith Lord, Mace Windu, along with fellow Jedi Kit Fisto, Saesee Tinn, and Agen Kolar left to seek out Palpatine and arrest him.
Palpatine made short work of Fisto, Tinn, and Kolar, but was knocked to the ground by Mace. Before Mace could arrest him, however, Anakin Skywalker entered the room. Palpatine, resisting arrest, projected Force lightning at the Jedi Master who blocked it with his lightsaber. Mace decided that it was necessary to kill the Sith Lord. Anakin, convinced by Palpatine's false pleas for help, cut off Mace's saber hand, sending both his hand and his saber out of the window and into the streets of Coruscant below.
Palpatine then took advantage of Mace's surprise and attacked him with Force lightning, which knocked Mace out of the window as well, where he fell to his death.