Hari Raya Aidilfitri is the Malay term for the Muslim festival of Eid ul-Fitr. Hari Raya is also known as Lebaran.

During the Muslim month of Ramadan leading up to Hari Raya, it is mandatory for Muslims to fast from dawn to dusk. All Muslims except the young, old or infirm must fast. Many Muslims also abstain from pleasures during the daylight of the fasting month.

On the eve of Hari Raya, Muslims will recite the takbir, which is held in mosques and surau (smaller place of worship). In some communities, there will be congregations reciting the takbir from house to house. Many people also traditionally return to their home town generally from big metropolitan cities to rural areas. This is known as balik kampung, literally going back to one's home town to celebrate Hari Raya Aidilfitri with family and friends.

Usually on the eve of the celebrations, family members, especially mothers and housewives, will be busy preparing food, cakes, sweets, biscuits and various delicacies to be served on the day of Hari Raya. Delicacies such as ketupat or rice cake and a meat cuisine called rendang are among the most famous cuisines that are served during this day. Other family members will help in other chores such as decorating and cleaning up the house.

It is customary for Malays to wear traditional Malay costumes. The dress for men is called baju melayu while the women's are known as baju kurung and baju kebaya. Traditional textiles such as songket and batik are worn favourably during this day.

Muslims will attend Eid prayer in the morning and consecrate together harmoniously while taking the chance to meet and greet each other. Once the prayer is done, it is also common for Muslims in Malaysia to visit the grave of their loved ones. During this visit, they will clean the grave, perform the recital of the Yasin (a chapter from the Qur'an) and also the tahlil or prayers for the deceased. All these are done in hope that their loved ones are blessed by God and they are spared from the punishment in the grave.

The rest of the day is spent visiting relatives or serving visitors. Hari Raya is a very joyous day for children for this is the day where adults are extra generous.
During the night, there are often celebrations with sparklers and firecrackers, albeit restrictions on playing firecrackers enforced by the authorities.Safety issues, especially among children are raised and alarming cases relating to injuries caused by playing firecrackers are often reported, which initially led to the banning of playing firecrackers. Despite of the enforcement of banning firecrackers, more Malay children turn to home-made firecrackers such as meriam buluh (bamboo cannon) as alternatives to commercial fireworks. Usually the lighting of firecrackers begins a few days before the end of Ramadan, and continues for about a week afterwards.