TGZ (TAR.GZ) to TAR.LZ (TLZ) Converter
Convert your tgz files to tar.lz online & free
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How to convert TGZ to TAR.LZ
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
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About formats
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.
TAR.LZ is a compound archive format combining TAR archiving with lzip compression, a format created by Antonio Diaz Diaz and first released in 2009. The TAR layer bundles files with full Unix metadata into a single stream, and lzip applies LZMA compression with a robust container that includes per-member CRC-32 integrity checking and clean member boundaries. Lzip was designed with long-term archival in mind — it produces a simple, well-documented format with strong error recovery properties: if part of a TAR.LZ file is corrupted, undamaged members can still be extracted, unlike monolithic compressed streams where corruption propagates. The compression ratios are essentially identical to LZMA/XZ since lzip uses the same LZMA algorithm. One advantage is archival resilience — the member-based structure means a multi-part archive can survive partial corruption without losing all data, critical for long-term storage. The clean, minimal format design is another strength: lzip has a simple specification that independent implementations can follow precisely, reducing the risk of compatibility issues over decades of archival. TAR.LZ is used by the GNU Project for distributing source releases and is supported by GNU tar with the --lzip flag, as well as by plzip for parallel compression on multi-core systems.