LZ vs TAR
A detailed comparison of Lzip Compressed and TAR Archive — file size, quality, compatibility, and which format to choose for your workflow.
Technical Specifications
| Specification | .LZ | .TAR |
|---|---|---|
| MIME type | application/x-lzip | application/x-tar |
| Extension | .lz | .tar |
| Algorithm | LZMA | — |
| Maintainer | Antonio Diaz Diaz | — |
| Block size | — | 512 bytes (traditional) |
| Header variants | — | v7, ustar, POSIX.1-2001 (pax), GNU |
| Max filename length | — | 100 bytes (v7); unlimited (pax extended headers) |
Strengths Comparison
.LZ Strengths
- LZMA compression without xz complexity.
- Per-segment CRC32 integrity.
- Multi-threaded plzip variant.
- GNU FSF endorsement.
.TAR Strengths
- Streamable — you can tar files straight to a network pipe, no seek needed.
- Preserves Unix permissions, ownership, symbolic links, and timestamps.
- Universally supported on Unix-like systems.
- Simple format — the GNU tar source has been stable for decades.
- No compression overhead — pair with gzip/xz/zstd as needed.
Limitations
.LZ — Limitations
- Tiny ecosystem vs xz.
- No native Windows GUI tools.
- Rarely default anywhere.
.TAR — Limitations
- No built-in compression — plain .tar files are the same size as their contents.
- No random access — reading one file requires scanning from the start.
- Windows tooling is second-class — PowerShell only added native tar in 2018.
- Multiple incompatible header variants (v7, ustar, POSIX, GNU) over the years.
Frequently Asked Questions
LZ (Lzip Compressed) is an archive format used to bundle multiple files and folders into a single compressed file. The archive preserves the directory structure and typically reduces total size via compression. LZ sits in the archives & compressed family and has specific strengths around compression ratio, speed, or platform support.
TAR (TAR Archive) is an archive format used to bundle multiple files and folders into a single compressed file. The archive preserves the directory structure and typically reduces total size via compression. TAR sits in the archives & compressed family and has specific strengths around compression ratio, speed, or platform support.
7-Zip, WinRAR, The Unarchiver (macOS), and the built-in archive utilities on Windows and macOS open most LZ files. For command-line extraction, 7z, unar, or the format-specific tool handles LZ cleanly. If your extractor does not recognise LZ, convert to ZIP first — ZIP opens on every operating system without extra software.
7-Zip, WinRAR, The Unarchiver (macOS), and the built-in archive utilities on Windows and macOS open most TAR files. For command-line extraction, 7z, unar, or the format-specific tool handles TAR cleanly. If your extractor does not recognise TAR, convert to ZIP first — ZIP opens on every operating system without extra software.
Upload the LZ to KaijuConverter and pick ZIP, 7Z, TAR.GZ, or RAR as the target. Our pipeline extracts the original archive and re-compresses the contents into the target format. File permissions, timestamps, and directory structure are preserved where both formats support them.
Depends on the goal. ZIP is the universal baseline — every OS extracts it out of the box. Formats like 7Z or TAR.GZ compress better but require specific tools. LZ may win on compression ratio, password support, or OS integration for specific workflows; ZIP wins on raw compatibility.
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