Damn... Just select .tar.gz files inside Windows Explorer and decompress them locally using the right-mouse button context menu.

Works on Linux and Mac too, but there it's used via the CLI (where it's kinda redundant with the original tar CLI, except the arguments list is slightly cleaner I guess).

• Download and extract the correct binaries based on your system
• • Or build from source if you want
• [OPTIONAL] Make sure that the directory where you extracted Untarred (the one with the .exe and .ico inside) is in your $PATH so that you can call it from everywhere :D
• On Windows:
• Install the multi-file context menu entry (inside "Send to") by double-clicking on Install.bat
• [OPTIONAL] Install the context menu entry by double-clicking on the .reg file included alongside the Untarred.exe
• • Not really necessary, as the entry inside the "Send to" context menu is always there after installation :)
• Enjoy <3

Alternatively, you can also copy and paste Untarred.exe into the directory of your precious archives, and then select what you want to decompress and drag 'n' drop them into the Untarred.exe

Untarred.exe is the opposite of Tarred.exe, which provides easy context-menu compression of directories and files via the Windows context menu.