CHK is an advanced freeware checksum app to help you verify the integrity of your files, find duplicates, and much more.

CHk allows you to verify the integrity of downloaded/transferred files, find and get rid of duplicate files on your computer.

It has support for all the hashes you'll ever need including Adler32, BLAKE2b, CRC32, MD5, RIPEMD160, SHA1, SHA1, SHA2, SHA3,
Tiger, and Whirlpool.

The interface is simple and easy to use with full Unicode and drag-and-drop support.

CHK is portable, free and easy to use.