TAR.7Z (T7Z) to TGZ (TAR.GZ) Converter
Convert your tar.7z files to tgz online & free
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How to convert TAR.7Z to TGZ
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose tgz or any other format you need as a result (more than 200 formats supported)
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About formats
TAR.7Z is a compound archive format that combines the TAR) container with 7-Zip's LZMA/LZMA2 compression. The TAR layer bundles multiple files into a single stream preserving Unix metadata (permissions, ownership, symlinks), while the outer 7Z compression applies LZMA or LZMA2 to the entire stream. This combination leverages LZMA's superior compression ratios — typically 30-70% better than gzip — making TAR.7Z one of the most space-efficient archive formats for Unix-style backups and software distribution. The solid-stream approach means compression can exploit redundancy across all archived files rather than compressing each file independently. One advantage is maximum compression density: the TAR.7Z combination often produces the smallest archives among common Unix archive+compression pairings. Broad tool support is another strength — tar and 7-Zip are available on all major platforms, and many modern tar implementations can create and extract TAR.7Z archives directly with the appropriate flag. The format is popular for distributing large source code trees and backup archives where minimizing transfer size justifies the additional compression time.
TGZ (also written as .tar.gz) is the most widely used compound archive format on Unix-like systems, combining TAR) archiving with gzip compression. Gzip was created by Jean-loup Gailly and Mark Adler, first released on October 31, 1992 as a free, patent-unencumbered replacement for the Unix compress utility. The TAR layer bundles files with full Unix metadata (permissions, ownership, timestamps, symlinks, hard links) into a single sequential stream, and gzip compresses it using the Deflate algorithm — a combination of LZ77 dictionary matching and Huffman coding. The resulting .tar.gz or .tgz file is the standard format for distributing source code, creating system backups, and packaging software on Linux and Unix platforms. One advantage is near-universal support — TGZ files can be created and extracted on every Unix system, Windows (via 7-Zip, WinRAR), and macOS natively, making it the safest choice when the recipient's platform is unknown. Fast decompression is another practical strength: gzip extraction is significantly faster than bzip2 or xz, important for CI/CD pipelines, container image layers, and automated deployments where extraction time matters. GNU tar supports TGZ natively with the -z flag, and the format serves as the basis for many higher-level packaging systems. While XZ offers better compression ratios, TGZ remains the default choice when broad compatibility and extraction speed are priorities.