PeaZip is an OS-portable archiver tool (released for Windows and Linux); it supports it's native Pea archive format (featuring compression, splitting and flexible encryption and integrity check schemes) and other mainstream formats, with special focus on handling open formats.

Supports 7Z, 7-Zip sfx, ARJ, BZip2, CAB, CHM, CPIO, DEB, GZip, ISO, JAR, LHA, LZH, NSIS, OOo, PAQ, PEA, QUAD, RAR, RPM, split, TAR, Z, ZIP.

PeaZip doesn't follow the Explorer-like interface paradigm; the interface is more similar to a CD/DVD-burner application, allowing the user to:

save and restore layout of archives (input files and folders list) to speed up definition of archiving and backup operations;
save job definition (as plain text, to be used in any script language);
have a detailed job log after each operation;