File Checksum Tool is a free portable application that can generate a MD5, SHA-1, HAVAL, MD2, SHA-256, SHA-384, SHA-512 hash from a file. These are common hashes that are used to verify the integrity and authenticity of files. The software allows you to verify the Hash to ensure the file integrity is correct with the matching file or create new checksum for your important data. Many download sites list the MD5 hash along with the download link.