DEB vs GZ — Differences, File Size & When to Use Each

DEB vs GZ

Een uitgebreide vergelijking van Debian Package en Gzip Compressed — bestandsgrootte, kwaliteit, compatibiliteit en welk formaat het beste past bij jouw workflow.

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DEB

Debian Package

Archives & Compressed

DEB is the software package format used by Debian, Ubuntu, and related Linux distributions. It is an AR archive containing a control archive (metadata, scripts) and a data archive (installed files), managed by the dpkg package manager.

Over DEB-bestanden

Gzip Compressed

Archives & Compressed

Gzip is a single-file compression format based on the DEFLATE algorithm. It is most commonly paired with TAR to create .tar.gz archives and is the standard compression for web content delivery.

Over GZ-bestanden

Vergelijking van sterke punten

DEB Sterke punten

Explicit dependency resolution — no DLL Hell.
Cryptographic package signing (since the 2000s).
Pre/post-install scripts allow stateful upgrades.
Mature tooling (dpkg, apt, aptitude).
30+ years of stable package management.

GZ Sterke punten

Patent-free, royalty-free — that was the whole point in 1992.
Universally supported on every OS.
Fast compression and extremely fast decompression.
Preserves original timestamps and filenames in the header.
Streamable — can compress/decompress over pipes.

Beperkingen

DEB Beperkingen

Debian/Ubuntu-family only — incompatible with Red Hat, Arch, etc.
Conversion to other package formats (RPM, Arch) is nontrivial.
Cross-distribution compatibility is weak — "the same .deb" may not install across all DEB distros.
Size is larger than source-tarball equivalents.

GZ Beperkingen

Compresses one file at a time — needs tar for multi-file archives.
Older algorithm — Zstandard, xz, and brotli all beat it on ratio.
Single-threaded in the reference implementation (pigz fixes this).
Not as aggressive as modern codecs on highly redundant data.

Technische specificaties

Specificatie	DEB	GZ
MIME type	application/vnd.debian.binary-package	application/gzip
Extension	.deb	—
Container	ar archive (control.tar.* + data.tar.*)	—
Compression	gzip, xz, zstd (data tarball)	—
Managers	dpkg, apt, aptitude, synaptic	—
Extensions	—	.gz, .tgz (with tar)
Algorithm	—	DEFLATE (LZ77 + Huffman coding)
Standard	—	RFC 1952 (gzip), RFC 1951 (DEFLATE)
Header	—	10 bytes: magic, method, flags, mtime, extra, filename, comment, crc, isize

Typische bestandsgroottes

DEB

Small CLI tool 100 KB - 2 MB
Desktop app (LibreOffice, Firefox) 100-300 MB
Large development toolchain 500 MB - 2 GB

GZ

Plain text file 25-40% of original
HTML page 20-30% of original
Source code archive 15-30% of original
Already-compressed file (JPEG, MP4) 99-100% (no gain)

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