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