HashMyFiles - HashMyFiles is small utility that allows you to calculate the MD5 and SHA1 hashes of one or more files in your system.
OpenHashTab - OpenHashTab is a shell extension for conveniently calculating and checking file hashes from file properties.
RapidCRC Unicode - RapidCRC is an open source CRC/MD5/SHA hashing program.
GtkHash - A GTK+ utility for computing message digests or checksums.
Md5Checker - Md5Checker is a free, faster, lightweight and easy-to-use tool to manage, calculate and verify MD5 checksum of multiple files/folders.
fHash - fHash - a file hash calculator for Windows and macOS.