Chili sauce is a condiment prepared with chili peppers and red tomato as primary ingredients. Chili sauce may be hot, sweet or a combination thereof, and may differ from hot sauce in that many sweet or mild varieties exist, which is typically lacking in hot sauces. Several varieties of chili sauce include sugar in their preparation, such as sweet chili sauce and Thai sweet chili sauce, which adds sweetness to their flavor profile. Chili sauce may have a thicker texture and viscosity when compared to that of hot sauces.

Hot sauce, also known as chili sauce or pepper sauce refers to any spicy sauce condiment made from chili peppers and other ingredients.