AAC to AU Converter — Free Online

Free online AAC to AU converter — quickly transform your audio files without registration or software installation. Our service lets you convert aac to au in just a few clicks. Conversion happens right in your browser — files are never uploaded to a server and stay on your device. AU is a classic Unix/Sun format. Widely supported in scientific and professional software. Try our aac to au converter right now!

🔄 How AAC to AU Converter Works

Our free aac converter quickly produces AU files. Upload source files, choose settings, and click "Convert".

Batch conversion saves time — process multiple files in one session. Flexible bitrate settings help balance quality and size.

AAC to AU online — no software installation. Open the site on any device with a browser and start converting now.

🎯 Problems This Converter Solves

Issues playing AAC?

Convert to universal AU format for better compatibility.

💡 Common Uses for AU

📁 Convert to AU format

🔄 Change audio format

📱 Device compatibility

💾 Optimize file size

✨ Our Converter Advantages

⚡ Rapid Conversion

No waiting — results delivered immediately

📦 Bulk Processing

Save time by converting in batches

💻 All Platforms

Windows, Mac, Linux, iOS, Android — everywhere

🔒 Secure Handling

Your data stays private — no storage

🎵 Flexible Settings

Choose quality, bitrate, and other parameters

💰 No Payment

All features available free without an account

📊 Format Comparison

AAC Compact format

Advanced Apple codec. Better than MP3 at equal bitrate.

AU High quality

Sun Audio. Classic Unix format for software.

❓ Frequently Asked Questions

How can I transform AAC to AU?

Open the converter page, add your AAC file, select AU, and click the convert button. Download when ready.

Is the AAC to AU converter free?

Absolutely free! Convert as many files as you want without registration or payment.

What quality can I expect after AAC to AU conversion?

Original quality is preserved but not improved. Lossless container is useful for further editing without additional losses.

How many AAC files can I process at once?

Up to 10 files per session. All processed in parallel in your browser.

What size files can I convert?

Up to 100 megabytes. Browser conversion doesn't upload files to server — fully private.

Is AAC to AU conversion secure?

Completely secure! Processing happens in browser, your AAC files are never transmitted anywhere.

📝 How to Convert AAC to AU

1

Upload File

Drag & drop AAC files or click "Choose Files"

2

Adjust Settings

Choose quality, bitrate and other options

3

Convert

Click "Convert" and wait for processing

4

Download Result

Download your AU files