DEFLATE is a data compression algorithm that reduces the size of files by eliminating redundant information. It combines two techniques: LZ77 compression, which replaces repeated strings with shorter references, and Huffman coding, which uses variable-length codes for frequently occurring symbols. This makes it efficient for compressing various types of data, including text and images. The DEFLATE algorithm is widely used in many applications, such as ZIP file formats and PNG images. Its ability to compress data without losing any information makes it a popular choice for software developers and users who need to save storage space or speed up data transmission.