Convert 7Z to TAR.GZ — Free Online Converter

7Z is a high-compression archive format from the 7-Zip project, leveraging LZMA and LZMA2 algorithms that consistently outperform DEFLATE-based compression. TAR.GZ (also known as a tarball) combines the Unix TAR archiver with gzip compression, producing the standard format for source code distribution, Linux packages, and open-source project releases.

Converting 7Z to TAR.GZ repacks your data from a format that requires specialized 7Z tooling into the universal Linux/Unix distribution format. TAR.GZ is the expected format for source releases on GitHub, npm package tarballs, Ruby gems, and most package manager ecosystems. The `tar` command handles TAR.GZ extraction natively on every Unix system.

TAR.GZ is the established convention for distributing source code, configuration bundles, and deployment artifacts across the open-source ecosystem. GitHub's "Download as tar.gz" button, npm's package format, and most Linux package build systems (RPM spec files, Debian orig tarballs) expect .tar.gz input. Submitting a 7Z file to these workflows simply does not work.

Beyond convention, TAR.GZ offers the combination of directory structure preservation (via tar), reasonable compression (via gzip), and universal extraction support. While 7Z compresses better, the recipient needs p7zip installed. TAR.GZ requires nothing beyond the standard Unix toolchain that ships with every operating system.

The conversion pipeline extracts the 7Z archive contents using p7zip into a temporary directory, fully decompressing LZMA/LZMA2 data streams. The extracted file tree is then processed by `tar` to create a POSIX-format archive stream, which is immediately piped through `gzip` (DEFLATE compression at level 6) to produce the final .tar.gz output. The gzip layer adds a 10-byte header, CRC32 checksum, and original size footer. Total compression ratio will be lower than the original 7Z but sufficient for most distribution purposes.