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HomeRAR vs CAB
.rar
.cab

RAR vs CAB

Compare RAR Archive and Cabinet Archive 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

CAB

Cabinet Archive

Cabinet Archive (.cab) is a archive file format.

.cabarchive

RAR vs CAB: Feature Comparison

FeatureRARCAB
Full NameRAR ArchiveCabinet Archive
File Extension.rar.cab
Categoryarchivearchive
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use RAR vs CAB

Use RAR when you need:

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

Use CAB when you need:

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

Convert Between Them

RAR CABCAB RAR
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Learn More About These Formats

RAR Converter CAB Converter

Frequently Asked Questions

What is the difference between RAR and CAB?
RAR (RAR Archive) and CAB (Cabinet Archive) are both archive file formats. RAR files use the .rar extension while CAB uses .cab. They differ in compression, quality, compatibility, and intended use cases.
Can I convert RAR to CAB for free?
Yes! Convert999 lets you convert RAR to CAB 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 CAB?
It depends on your use case. RAR (RAR Archive) may be better for certain workflows, while CAB (Cabinet Archive) 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

CAB Converter

Convert from CAB

File Tools

Compress, resize, merge

Convert to RAR

All sources → RAR

Convert to CAB

All sources → CAB

Format Statistics

Trends & data 2025

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