EF CheckSum Manager is a program designed for the integrity examination of files on the standard formats SFV, MD5, BLAKE3 and SHAx. They can verify existing checksums or create new checksum for your important data. The EF CheckSum Manager is easy to use and much fast, supports the recursive processing of file structures, works up to whole drives. You have the choice to let only one checksum file for all files, one per folder or to produce for each file separate checksums.