Skip to main content
Convert999
フォーマットすべての変換ツール比較活用事例ToolsBlog
変換ツール
Convert999

400以上の形式をサポートする無料オンラインファイル変換ツール。

製品

  • すべての変換ツール
  • フォーマット
  • 比較
  • 活用事例
  • Tools

リソース

  • 概要
  • Blog
  • Security
  • Glossary
  • Statistics
  • Changelog
  • Contact

法的情報

  • プライバシーポリシー
  • 利用規約

© 2026 Convert999. All rights reserved.

Made with for the web

HomeRAR vs LZMA
.rar
.lzma

RAR vs LZMA

Compare RAR Archive and LZMA Compressed formats — understand the key differences and when to use each

Format Overview

RAR

RAR Archive

RAR (Roshal Archive) is a proprietary archive format created by Eugene Roshal in 1993, known for superior compression ratios compared to ZIP. RAR typically achieves 10-30% better compression than ZIP on the same data. It supports solid compression (treating multiple files as one continuous stream for better ratios), multi-part archives for splitting large files, recovery records for repairing damaged archives, AES-128/256 encryption, and Unicode filename support. RAR5, the latest version, uses a new compression algorithm with improved speed and ratios. While RAR requires third-party software for creation (WinRAR), many tools can extract RAR files. RAR is popular for large file distribution, particularly in gaming, software, and media communities.

.rararchive

LZMA

LZMA Compressed

LZMA Compressed (.lzma) is a archive file format.

.lzmaarchive

RAR vs LZMA: Feature Comparison

FeatureRARLZMA
Full NameRAR ArchiveLZMA Compressed
File Extension.rar.lzma
Categoryarchivearchive
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use RAR vs LZMA

Use RAR when you need:

  • •Files in RAR Archive format for maximum compatibility
  • •Industry-standard archive format support
  • •Wide software and platform compatibility

Use LZMA when you need:

  • •Files in LZMA Compressed format for specific workflows
  • •Optimized archive format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

RAR LZMALZMA RAR
ファイルを選択

またはファイルをここにドラッグ&ドロップ

最大ファイルサイズ:2GB

ファイルはブラウザ内でローカルに処理されます。サーバーにアップロードされません。

Learn More About These Formats

RAR Converter LZMA Converter

Frequently Asked Questions

What is the difference between RAR and LZMA?
RAR (RAR Archive) and LZMA (LZMA Compressed) are both archive file formats. RAR files use the .rar extension while LZMA uses .lzma. They differ in compression, quality, compatibility, and intended use cases.
Can I convert RAR to LZMA for free?
Yes! Convert999 lets you convert RAR to LZMA completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.
Which is better, RAR or LZMA?
It depends on your use case. RAR (RAR Archive) may be better for certain workflows, while LZMA (LZMA Compressed) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.
Is it safe to convert files on Convert999?
Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

RAR Converter

Convert from RAR

LZMA Converter

Convert from LZMA

File Tools

Compress, resize, merge

Convert to RAR

All sources → RAR

Convert to LZMA

All sources → LZMA

Format Statistics

Trends & data 2025

More Format Comparisons

JPGvsPNGPNGvsWEBPJPGvsWEBPSVGvsPNGHEICvsJPGBMPvsJPGTIFFvsJPGGIFvsPNG