7Z (7-Zip Archive) and TAR.GZ (Gzipped Tarball) are built for different jobs. 7Z is typically used for maximum compression, while TAR.GZ is best for linux and macos distributions. Converting lets you open, share or upload your files wherever TAR.GZ is expected.
How to use the 7Z to TAR.GZ converter
- Add your 7Z filesClick “Choose Files” or drag and drop them into the box. You can add many files at once — or paste a file with Ctrl+V.
- Choose TAR.GZ and adjust settingsTAR.GZ is selected automatically. Optionally open Settings to change output options.
- Convert and downloadPress “Convert”. Your TAR.GZ files appear instantly — download them one by one or all together as a ZIP.
7Z vs TAR.GZ
7Z 7-Zip Archive
7Z offers some of the best compression ratios available and is open source, though Windows and macOS need an extra app to open it.
- Compression
- LZMA/LZMA2
- Features
- High compression ratio
- Origin
- 1999, Igor Pavlov
- Best for
- Maximum compression
TAR.GZ Gzipped Tarball
TAR.GZ (or .tgz) is a TAR bundle compressed with Gzip — the standard way to ship source code and backups on Linux.
- Compression
- Deflate
- Features
- Unix standard
- Origin
- 1992, GNU
- Best for
- Linux and macOS distributions
Why use ConvertMathly?
Files are processed on your device and never uploaded. Close the tab and they are gone.
No account, no daily cap, no queue and no watermark — convert as much as you want.
No waiting for uploads or downloads: results are ready as fast as your device can process them.
Windows, Mac, Linux, Chromebook, iPhone and Android — any modern browser, nothing to install.
Frequently asked questions
How do I convert 7Z to TAR.GZ?
Add your 7Z files above, make sure TAR.GZ is selected and press Convert. The TAR.GZ files are ready to download a few seconds later — no installation or account required.
Is there a file size or daily limit?
No. Since everything runs locally, there are no daily caps, queues or file size limits beyond what your device can handle.
Are my 7Z files uploaded to a server?
No. ConvertMathly converts files entirely inside your web browser using JavaScript and WebAssembly. Your files never leave your computer or phone, which makes it safe for private photos and documents.
Can I convert multiple 7Z files at once?
Yes — add as many files as you like. They are converted one after another and you can download everything in a single ZIP.