Originally Posted by xrm0
Didn't know it. Looks nice.
By reading tweak_epub's docs seems they are pretty similar. tweak_epub have some basic metadata editor, and it gives you a list of the files inside the epub. ExplodeImplodeEpub just presents you the uncompressed folder.
But it seems tweak_epub only runs on Windows, though.
The Tweak Book feature (used to be Tweak ePub) of calibre does something very similar: explode ... present you with the uncompressed folder for editing ... rebuild the archive when done. But it's nice to have stand-alone options.