HEVC, also known as H.265, is a video compression standard that is designed to improve upon the performance of its predecessor, H.264/AVC. It offers increased efficiency and improved quality, allowing for higher-resolution videos to be encoded at lower bit rates. This means that HEVC can be used to compress videos to smaller file sizes without sacrificing visual quality, making it useful for applications like streaming video over the internet and storing video on devices with limited storage space. HEVC is supported by many modern devices and software applications, but its use is limited by the availability of hardware and software that can decode it efficiently.