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LZMA file
lzma
Formato de arquivo

Sobre os arquivos LZMA

LZMA Comprimido

Lançado em 1998 Por Igor Pavlov

Algoritmo Igor Pavlov (1998) — base do 7-Zip e XZ. Compressão excelente, descompressão rápida. Padrão moderno para compressão máxima eficiente.

Família

Archives & Compressed

Extensão

.lzma

Tipo MIME

application/x-lzma

Pode ser usado como

Entrada Saída
A história

COMO NASCEU O
FORMATO LZMA.

1998
2001
2026

LZMA — Lempel-Ziv-Markov chain Algorithm — was published in 1998 by Russian programmer Igor Pavlov inside his 7-Zip archiver. The algorithm combines dictionary-based compression (descended from LZ77) with range coding and a Markov model for context prediction. At its highest settings LZMA achieves compression ratios that beat gzip by 30% and bzip2 by 10-15% at comparable quality levels, if with substantially higher CPU and memory demands.

LZMA is the core compression behind 7z archives, the xz format, and indirectly the `lzip` tool. Pavlov released the LZMA SDK in 2001 under public domain, triggering broad adoption: every Linux distribution shipped lzma/xz in userland; Android ships lzma decoders in the system image; Debian switched from bzip2 to xz for package compression. In 2026 LZMA variants remain the tool of choice when you need maximum compression with stable, production-proven tooling.

CURIOSIDADES E
FATOS INTERESSANTES.

01

LZMA's core algorithm powers 7-Zip, xz, .tar.xz, most modern Linux distros' kernel and package compression, and Debian's .deb payloads.

02

Igor Pavlov released LZMA SDK into the public domain in 2001 — one of the most consequential gifts to open-source compression.

03

The 2024 XZ backdoor (CVE-2024-3094) targeted xz-utils specifically, not the underlying LZMA algorithm — Igor Pavlov's code was intact.

04

LZMA uses adaptive range coding — the same math technique that underpins modern AI compression research.

05

LZMA2 (xz's actual algorithm) is a multi-threaded improvement over LZMA, designed to utilize modern multi-core CPUs.

VANTAGENS E
LIMITAÇÕES.

Vantagens

  • Highest-ratio mainstream compression (beats gzip by 30%).
  • Public domain SDK — royalty-free.
  • Mature since 1998 with no breaking changes.
  • Core of 7z, xz, .tar.xz workflows.
  • Multi-threaded LZMA2 scales across CPU cores.

Limitações

  • Slow compression at highest settings.
  • Memory-hungry — 1 GB+ for extreme compression levels.
  • Zstandard matches its ratios at less memory cost.
  • Raw .lzma files are rare — usually wrapped in .7z, .xz, or .tar.xz.

Tamanhos típicos de arquivo

Text/source archive

15-25% of original

Linux kernel source (.tar.xz = LZMA2)

~125 MB

Windows system backup (.lzma)

25-40% of original

Especificações técnicas

MIME type
application/x-lzma
Extensions
.lzma, .lz
Algorithm
Lempel-Ziv-Markov chain + range coding
Public domain SDK
Yes (since 2001)
Variants
LZMA (original), LZMA2 (multi-threaded, used in xz)

CONVERTER A PARTIR DE
LZMA

Casos de uso comuns

High-ratio single-file compression, 7-Zip ecosystem, embedded firmware

Formatos relacionados

Comparativos populares

Conversões populares de LZMA

Os destinos mais procurados ao converter arquivos LZMA.

Perguntas frequentes sobre LZMA

Perguntas frequentes

LZMA (LZMA comprimido) is an archive formato used to bundle multiple arquivos e folders em a single comprimido file. The archive preserves the directory structure e tipicamente reduces total size via compressão. LZMA sits no archives & comprimido family e has specific strengths around compressão ratio, speed, ou plataforma support.

7-Zip, WinRAR, The Unarchiver (macOS), e the built-in archive utilities no Windows e macOS abrir most LZMA files. para command-line extraction, 7z, unar, ou the formato-specific tool handles LZMA cleanly. If your extractor does not recognise LZMA, converter to ZIP first — ZIP opens on every operating system sem extra software.

Upload the LZMA to KaijuConverter e pick ZIP, 7Z, TAR.GZ, ou RAR como o target. Our pipeline extracts the original archive e re-compresses the contents em the target formato. arquivo permissions, timestamps, e directory structure are preserved where both formatoos support them.

Depends no goal. ZIP is the universal baseline — every OS extracts it out of the box. formatoos like 7Z ou TAR.GZ compress better mas require specific ferramentas. LZMA may win on compressão ratio, password support, ou OS integration para specific workflows; ZIP wins on raw compatibilidade.

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