Tar (the tool) does compression. Tar (the format) does not. Compression is applied separately from archiving. https://www.gnu.org/software/tar/manual/html_node

Tar (the tool) does compression. Tar (the format) does not. Compression is applied separately from archiving. https://www.gnu.org/software/tar/manual/html_node/Standard.html https://www.gnu.org/software/tar/manual/html_node/Standard.h...