FileInsight
File, disk information and activity monitoring for macOS
FileInsight displays information on disks and files and live file system activity.
It displays paths, sizes, dates, types, tags, extended attributes (names and hex display), volume capabilities, totals, manufactures, URLs, UUIDs, IOKit paths, file hex display (first and last 25k) and file hashes (MD4, MD5, SHA1, SHA224, SHA256, SHA384, SHA512, RMD160).
Click on the App Store link on the right for more information.
Available from the App Store
You'll need a Mac running OS X 10.8 Mountain Lion or later.