How do I convert GZ to TAR.GZ?

Add your GZ file to the upload area above, then press Convert. The TAR.GZ file downloads straight to your device. You do not need an account, and there is no watermark.

Are my files uploaded to a server?

No. This conversion runs entirely inside your browser using WebAssembly, so the file never leaves your device — you can even disconnect from the internet after the page loads and it will still work.

Does converting to TAR.GZ reduce quality?

File contents are byte-identical; only the container changes.

How large a file can I convert?

Up to 500 MB per file for this conversion. Because the work happens in your browser, the practical limit is your device's memory — larger files work on a desktop with plenty of RAM and may fail on an older phone.

Can I convert several files at once?

Yes. Add as many as you like and press Convert All. Each file is processed independently, so one failure does not stop the rest, and you can download everything together as a ZIP.

Can I use this on my phone?

Yes. FileTools360 works in mobile browsers on iOS and Android, including choosing files straight from your camera roll. Very large videos may run out of memory on a phone — those are better converted on a laptop.

ArchiveRepackagedRuns in your browser

GZ to TAR.GZ Converter

Turn GZ files into TAR.GZ in a couple of clicks. Single-file compression used everywhere in Unix. The standard Unix compressed bundle. Files are unpacked and repacked; their contents are unchanged.

On your deviceNever uploadedGone when you close the tabHow this works

Drop your files here

GZ files (.gz) · up to 500 MB each

or paste files from your clipboard

Ready when you are

Drop a GZ file above and FileTools360 will turn it into TAR.GZ — right here on your device, without uploading anything.

⌘K to search converters

How to use it

1
Add your GZ files
Drag them onto the upload area, choose them from your device, or paste them from your clipboard. You can queue several at once.
2
Adjust the settings if you want to
The defaults suit most people. Open Advanced to control the output settings.
3
Convert and download
Press Convert. Everything happens on your own device — nothing is uploaded. Download files one by one, or grab them all as a ZIP.

GZ and TAR.GZ explained

Gzip compresses a single file — it is not an archive format and cannot hold multiple files, which is why it is combined with TAR.

A .tar.gz is a TAR archive that has been compressed with gzip — bundling and compression handled by two separate, composable tools.

Where GZ files come from: Compressed logs, HTTP transfer encoding and Unix pipelines.
Where TAR.GZ is used: Source code releases, Linux packages and server backups.

GZ vs TAR.GZ

The two formats solve different problems, which is why converting between them involves trade-offs rather than a straight upgrade.

GZ compared with TAR.GZ
Property	Source	Target
Compression	Lossless	Lossless
Introduced	1992	—
Browser support	Native on macOS and Linux.	Native on macOS and Linux.

GZ is stronger at: Fast compression and decompression. Ubiquitous in Unix and on the web. Streams well.
TAR.GZ is stronger at: Preserves Unix permissions and symlinks. Good compression. The standard for Unix software distribution.

Why convert GZ to TAR.GZ?

People make this switch when they run into the limits of GZ: bundling multiple files. TAR.GZ is the better fit when distributing or backing up on Unix-like systems.

GZ limitations that prompt the switch: One file only. Weaker compression than modern algorithms. No built-in integrity metadata beyond a checksum.
What you give up: Extracting one file requires decompressing the whole archive. Needs extra software on Windows.

What is preserved when converting GZ to TAR.GZ?

Both formats store the content without discarding data, so this conversion preserves it exactly. The file size may change because the two formats compress differently, but the content itself is unaffected.