Free · No Upload · Instant

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

Convert ARJ to RAR online for free. Fast, private ARJ 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 ARJ to RAR

Upload your ARJ 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 ARJ Format

Extension: .arj
Full name: ARJ Archive

About RAR Format

Extension: .rar
Full name: RAR Archive

Frequently Asked Questions

Is it safe to convert ARJ 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 ARJ 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 ARJ 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 ARJ file, and download the converted RAR file.

Will I lose quality converting ARJ 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 ARJ files to RAR?

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

What is the difference between ARJ and RAR?

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

Why Convert ARJ 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

→ARJ (ARJ 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

Related Conversions

ARJZIP ARJRAR ARJ7Z ARJTAR ARJGZ ARJBZ2 ZIPRAR 7ZRAR TARRAR GZRAR BZ2RAR XZRAR

Explore More

.arj

ARJ Converter

All ARJ conversions

.rar

RAR Converter

All RAR conversions

ARJ vs RAR

Compare formats

Convert to RAR

All sources → RAR