Free · No Upload · Instant

Convert CAB to RAR Free Online — Best CAB to RAR Converter 2025

Convert CAB to RAR online for free. Fast, private Cabinet Archive to RAR Archive converter — no upload, no signup. Works in your browser instantly.

Choose Files

or drag and drop files here

Max file size: 2GB

Your files are processed locally in your browser. Nothing is uploaded to any server.

How to Convert CAB to RAR

Upload your CAB file by clicking "Choose Files" or drag and drop it.

Select RAR as the output format.

Click "Convert Now" and download your converted file.

About CAB Format

Extension: .cab
Full name: Cabinet Archive

About RAR Format

Extension: .rar
Full name: RAR Archive

Frequently Asked Questions

Is it safe to convert CAB to RAR online?

Yes! Convert999 processes all files directly in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

How long does it take to convert CAB to RAR?

Conversion is nearly instant for most files. Large files may take a few seconds depending on your device's processing power.

Is there a file size limit?

Convert999 supports files up to 2GB. Processing happens locally, so larger files depend on your device's available memory.

Do I need to install any software?

No installation required. Convert999 works entirely in your web browser on any device.

Can I convert CAB to RAR on my phone?

Yes! Convert999 works on any device with a web browser — iPhone, Android, iPad, or desktop. No app installation required. Simply open the converter, upload your CAB file, and download the converted RAR file.

Will I lose quality converting CAB to RAR?

Convert999 uses high-quality conversion algorithms to minimize quality loss. For lossless formats, the conversion is exact. For lossy formats like images and audio, we use optimized settings that balance quality and file size.

Can I batch convert multiple CAB files to RAR?

Yes, Convert999 supports batch conversion. Select or drag & drop multiple CAB files and convert them all to RAR format at once. Each file is processed locally in your browser.

What is the difference between CAB and RAR?

Cabinet Archive (CAB) and RAR Archive (RAR) differ in compression, compatibility, and features. CAB is optimized for its native use cases, while RAR may offer different advantages. Visit our CAB vs RAR comparison page for a detailed breakdown.

Why Convert CAB to RAR?

Advantages

✓RAR Archive offers better compatibility with modern applications and workflows
✓Converting is completely free with no file size limits on Convert999
✓Your files never leave your device — 100% private and secure conversion
✓Instant conversion without waiting for server processing

Key Differences

→CAB (Cabinet Archive) is optimized for its native use cases
→RAR (RAR Archive) may offer different compression or feature set
→Choose based on your target platform, quality needs, and file size requirements

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