PeaZip is a free file archiver utility, similar to WinRar, WinZip, and 7-Zip (or File Roller, and Ark on Linux), based on Open Source technologies of 7-Zip / p7zip archiver, Facebook Zstandard compressor, FreeArc, Google Brotli compressor, PAQ family of compressors, PEA (archiving and encryption) project, and other Free Software file compression tools. //

When browsing a filesystem the file browser can show file checksum / hash value on demand in last column, allowing to identify binary identical files which have same checksum/hash value.

Clicking the name of the function (after rightclicking the file manager colum header) PeaZip file manager will display hash or checksum value for all (or selected) files. Clicking "Find duplicates" PeaZip file manager will work as duplicate finder utility, displaying size and hash or checksum value only for duplicate files - same binary identical content featured in two or more distinct files - and will report the number of non-unique files identified.