How do I convert a CAF file to AU using LetsConvert?

Upload your CAF file by dragging it into the drop zone. Select AU as the output format. Optionally adjust the sample rate and bit depth to match your target system. Click 'Convert' and download the resulting AU file. The entire process is done client-side for privacy.

Why should I convert CAF to AU instead of keeping it in Apple Core Audio Format?

CAF is Apple's proprietary container format, commonly used in macOS and iOS. AU (Sun Audio) is a lightweight, widely supported format on Unix/Linux systems and many legacy portable players. Converting to AU ensures compatibility with older hardware and audio tools, and if your CAF stores uncompressed PCM, you can often achieve a smaller file size without any quality loss.

Does converting CAF to AU preserve audio quality and metadata?

Our converter decodes CAF to raw PCM and encodes it into AU, preserving sample rate, bit depth, and channel count. If the source codec is compressed (e.g., AAC or ALAC), it is decoded, which may slightly increase file size but retains perceived quality. AU supports only basic header metadata like encoding and sample rate; custom CAF metadata such as markers, strings, or channel layout is not carried over.

Is CAF-TO-AU free to use?

Yes, CAF-TO-AU on LetsConvert is 100% free with no registration or hidden fees required.

Are my uploaded files safe and secure?

Yes! File privacy and security are guaranteed. Basic conversions run locally in your browser. Files sent for server processing are automatically deleted within 1 hour.

Does this converter work on mobile phones and tablets?

Yes! CAF-TO-AU works seamlessly across iPhone, Android, iPad, Mac, Windows, and Linux browsers without installing any app.

Is there any software installation required?

No software or browser extension installation is needed. All conversions are performed directly online.

CAF➔AU· 100% Free & 320kbps

CAF-TO-AU

Convert Apple CAF to Sun AU for legacy Unix systems. Preserve PCM audio codec and sample rate while reducing file size. Fast online conversion.

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4.7 / 5.0(41 user ratings)

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Supports up to 50MB · Studio quality sound

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CAF

CAF File Format

Source Format

CAF is a standardized digital file format supported by LetsConvert. Convert CAF files securely, privately, and instantly online with zero software installation, bank-grade encryption, and automatic 60-minute file purging.

Category: Data & Media File

MIME Type: application/caf

Developer: Standard Organization

Best For: Converting and managing CAF files across devices and applications.

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AU

AU File Format

Target Output

AU is a standardized digital file format supported by LetsConvert. Convert AU files securely, privately, and instantly online with zero software installation, bank-grade encryption, and automatic 60-minute file purging.

Category: Data & Media File

MIME Type: application/au

Developer: Standard Organization

Best For: Converting and managing AU files across devices and applications.

💡 Technical Guide & Conversion Insights

Why Convert CAF to AU?

Converting from CAF (CAF File Format) to AU (AU File Format) is essential when you need enhanced compatibility, reduced file size, or specific feature support. While CAF is ideal for Converting and managing CAF files across devices and applications., AU offers superior advantages for Converting and managing AU files across devices and applications.. Our secure online conversion engine ensures that all your CAF file attributes, geometry, quality, and metadata are seamlessly preserved during the transformation into AU.

● CAF Key Advantages:

✓Standard format compatibility
✓Fast online conversion processing
✓Zero software install required

● AU Key Advantages:

★Standard format compatibility
★Fast online conversion processing
★Zero software install required

CAF vs AU Comparison Table

Detailed technical differences and capabilities between CAF File Format and AU File Format.

Feature / Attribute	CAF	AU
Primary Format Name	CAF File Format	AU File Format
Primary File Category	Data & Media File	Data & Media File
Standard MIME Type	application/caf	application/au
Core Developer / Standard	Standard Organization	Standard Organization
Optimal Use Case	Converting and managing CAF files across devices and applications.	Converting and managing AU files across devices and applications.

❓ Common Questions

Frequently Asked Questions (CAF to AU)

Everything you need to know about converting CAF to AU with LetsConvert.

To convert your CAF file to AU, upload your file by dragging and dropping it into the upload box or selecting it from your device. Adjust any optional quality or dimension settings, then click 'Convert'. Your converted AU file will be ready for instant high-speed download within seconds.

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100% Secure & Automatic File Purging

Your CAF files are encrypted with 256-bit SSL and permanently deleted from our servers within 60 minutes.

● Zero File Storage

How to Convert CAF-TO-AU

Select or drop your Caf file.

Initiate the AU conversion process.

Download your converted AU file.

⚡ Related Audio Tools

CAF-TO-AU

CAF

AU

Why Convert CAF to AU?

● CAF Key Advantages:

● AU Key Advantages:

CAF vs AU Comparison Table

Frequently Asked Questions (CAF to AU)

100% Secure & Automatic File Purging

How to Convert CAF-TO-AU

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