CHK Checksum Utility is described as 'CHK is an advanced checksum utility — a simple application designed to help you verify the integrity of your files, find duplicates and much more!' and is an app in the file management category. There are more than 25 alternatives to CHK Checksum Utility for a variety of platforms, including Windows, Linux, BSD, Mac and PortableApps.com. The best alternative is dupeGuru, which is both free and Open Source. Other great apps like CHK Checksum Utility are HashCheck Shell Extension, OpenHashTab, RapidCRC Unicode and HashMyFiles.
dupeGuru is a free and open source tool to find duplicate files on your computer. It can scan either filenames or contents. The filename scan features a fuzzy matching algorithm that can find duplicate filenames even when they are not exactly the same.
RHash (Recursive Hasher) is a console utility for computing and verifying hash sums of files. It supports CRC32, MD4, MD5, SHA1, SHA256, SHA512, Tiger, DC++ TTH, BitTorrent BTIH, ED2K, AICH, GOST R 34.