: A popular utility on the Mac App Store that supports a wide range of functions including MD5, SHA1, and SHA2.

: A lightweight, 100% freeware utility for calculating file checksums.

If you are looking for a reliable, free tool to generate or verify hashes on your Mac, Top Free Hashing Tools for Mac

: A simple tool that converts text into 6 different hash methods (MD5, SHA256, etc.) directly from your status bar.