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Why Switch from TAR.GZ to 7Z?
Better Ratio
7Z often beats Gzip by 30-40% on similar files.
AES-256
7Z supports strong encryption if you need it later.
Faster Uploads
Smaller file = less time uploading to the cloud.
When Does TAR.GZ to 7Z Actually Make Sense?
Okay, so you've got a tarball – .tar.gz. It's the default on Linux servers, GitHub releases, pretty much everywhere in open-source land. But here's the thing: Gzip is old. Like, 90s old. It's fast, sure, but it doesn't squeeze files as tight as newer algorithms. 7-Zip's LZMA2 compression? That stuff is magic. We're talking 20-40% smaller files, sometimes even more if you're packing text, code, or configs.
So if you're archiving stuff for long-term storage, or you need to squeeze a big project under a size limit, converting that TAR.GZ to 7Z is a no-brainer. This tool unpacks your tarball and repacks it as a .7z file. You don't need 7-Zip installed, you don't need to remember any command-line flags. Just upload, click, and watch the file size drop.
Quick Answers
Nope. Everything inside your .tar.gz – folders, subfolders, weird filenames – all of it goes straight into the .7z.
Different tool, but yeah – we've got converters for that too. This one's specifically TAR.GZ → 7Z.
Mac doesn't open .7z natively, but apps like The Unarchiver or Keka handle it fine. Or just convert it back later!