Convert AU to ALAC
Fast, free, and secure AU to ALAC conversion. No registration required.
Stop uploading your au files to random websites. Xonvert converts to alac right inside your browser — 100% offline. The AU Audio standard (maintained by Sun Microsystems) provides simple format with wide Unix/Linux tool support. Apple Lossless (Apple's format) delivers lossless compression with native Apple ecosystem support — making this conversion highly practical. AU Audio dates back to 1980s, while Apple Lossless arrived in 2004 with more modern compression technology. Need to convert the other direction too? Just click the swap button to reverse source and target formats.
Benefits of AU to ALAC Conversion
There are strong reasons to convert AU to ALAC:
Cross-device access: Apple Lossless files open seamlessly on Windows, macOS, Linux, iOS and Android — unlike AU Audio, which may require specialized software.
Embedding support: Apple Lossless files embed cleanly in websites, documents, and presentations without requiring additional plugins or viewers.
Feature support: Apple Lossless supports lossless compression with native Apple ecosystem support, which may not be available or optimal in the AU Audio format.
Metadata handling: Apple Lossless has robust metadata support, allowing you to embed titles, tags, and descriptions that travel with the file.
Industry standard: In many audio workflows, Apple Lossless has become the go-to format, making this conversion a frequent necessity.
Cross-device access: Apple Lossless files open seamlessly on Windows, macOS, Linux, iOS and Android — unlike AU Audio, which may require specialized software.
Embedding support: Apple Lossless files embed cleanly in websites, documents, and presentations without requiring additional plugins or viewers.
Feature support: Apple Lossless supports lossless compression with native Apple ecosystem support, which may not be available or optimal in the AU Audio format.
Metadata handling: Apple Lossless has robust metadata support, allowing you to embed titles, tags, and descriptions that travel with the file.
Industry standard: In many audio workflows, Apple Lossless has become the go-to format, making this conversion a frequent necessity.
Format Breakdown: AU vs ALAC
| Feature | AU | ALAC |
|---|---|---|
| Full Name | AU Audio | Apple Lossless |
| Category | Audio | Audio |
| Compression | Lossless | Lossless |
| Key Strength | simple format with wide Unix/Linux tool support | lossless compression with native Apple ecosystem support |
| Key Weakness | no compression options, limited metadata | Apple-centric, less universal than FLAC |
| Primary Use | Unix system sounds | Apple Music library |
| Developer | Sun Microsystems | Apple |
| Year Released | 1980s | 2004 |
How AU to ALAC Conversion Works
Converting AU to ALAC with Xonvert is straightforward:
1. Start here — Scroll to the converter above and click "Select File" or drag your AU file into the drop zone.
2. Auto-config — The tool detects AU format and automatically sets the optimal ALAC conversion parameters.
3. Quality control — Optionally adjust the output quality slider. Default is set to "High" for the best balance.
4. Download — Conversion completes in seconds. Your ALAC file is ready for download — clean, converted, private.
1. Start here — Scroll to the converter above and click "Select File" or drag your AU file into the drop zone.
2. Auto-config — The tool detects AU format and automatically sets the optimal ALAC conversion parameters.
3. Quality control — Optionally adjust the output quality slider. Default is set to "High" for the best balance.
4. Download — Conversion completes in seconds. Your ALAC file is ready for download — clean, converted, private.
Fidelity When Converting AU to ALAC
AU Audio encodes data using mathematical algorithms that preserve every data point. Apple Lossless prioritizes exact data preservation. The conversion maps between these approaches intelligently. AU Audio's known limitation — no compression options, limited metadata — is resolved when converting to Apple Lossless, which offers lossless compression with native Apple ecosystem support. The AU Audio source uses lossless encoding. The Apple Lossless output uses lossless encoding. Since both share the same compression philosophy, quality transfer is highly efficient.
Audio conversion from AU Audio to Apple Lossless focuses on preserving sonic fidelity while adapting to the target format's characteristics. Both formats are lossless, guaranteeing a bit-perfect audio transfer with no quality change whatsoever. Sample rate, bit depth, and channel layout are preserved when supported by the target format.
The AU to ALAC conversion applies format-appropriate algorithms to ensure maximum data fidelity. Supports mu-law, A-law and linear PCM encoding
Audio conversion from AU Audio to Apple Lossless focuses on preserving sonic fidelity while adapting to the target format's characteristics. Both formats are lossless, guaranteeing a bit-perfect audio transfer with no quality change whatsoever. Sample rate, bit depth, and channel layout are preserved when supported by the target format.
The AU to ALAC conversion applies format-appropriate algorithms to ensure maximum data fidelity. Supports mu-law, A-law and linear PCM encoding
Typical Conversion Scenarios
Common scenarios for AU to ALAC conversion:
• Client onboarding — When receiving AU files from clients, convert to ALAC to integrate smoothly into your internal workflow.
• Print preparation — Converting to ALAC may be necessary when submitting files to print services or publishers.
• Conference submissions — Academic and professional conferences specify accepted formats. ALAC is commonly required for audio submissions.
• Platform upload requirements — Social media and cloud platforms often accept ALAC — converting from AU meets their requirements.
• Legal documentation — Courts and regulatory bodies often require specific file formats. Convert AU to ALAC for compliant submissions.
• Reducing file size — ALAC compression can significantly reduce storage requirements compared to AU.
• Client onboarding — When receiving AU files from clients, convert to ALAC to integrate smoothly into your internal workflow.
• Print preparation — Converting to ALAC may be necessary when submitting files to print services or publishers.
• Conference submissions — Academic and professional conferences specify accepted formats. ALAC is commonly required for audio submissions.
• Platform upload requirements — Social media and cloud platforms often accept ALAC — converting from AU meets their requirements.
• Legal documentation — Courts and regulatory bodies often require specific file formats. Convert AU to ALAC for compliant submissions.
• Reducing file size — ALAC compression can significantly reduce storage requirements compared to AU.
Everything About AU to ALAC Conversion
What happens to my files after conversion?▼
Nothing — your files exist only in your browser's memory during conversion. Once you close the page, all data is cleared. No files are stored anywhere.
What is AU format?▼
AU Audio is Sun/Unix audio format for basic audio on Unix systems. It is primarily used for Unix system sounds, telephony and basic audio processing. Originally for Sun Microsystems workstations
Will the conversion strip my EXIF or metadata?▼
Xonvert preserves metadata (EXIF, XMP, ID3, etc.) when the target ALAC format supports it. You can optionally strip metadata in the settings for smaller, cleaner output files.
Does the conversion preserve metadata?▼
Xonvert preserves compatible metadata fields when converting between formats. Some format-specific metadata may not carry over if the target format doesn't support it.
Can I share the converted ALAC file directly?▼
Yes. After conversion, you can download the ALAC file and share it via email, messaging apps, cloud storage, or any other method you prefer.
Does converting AU to ALAC change the resolution?▼
Resolution is not applicable for audio files. All content data transfers at full fidelity.
Do I need to install any software?▼
No installation required. The converter runs entirely in your web browser. No plugins, extensions or desktop apps needed.