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    Convert AAC to AU Files Online for Free.

    Free online tool to convert aac to au files quickly and securely. No installation required – start converting your files in just a few clicks!

    Convert AAC to AU Online for Free

    Looking to turn your AAC file into a AU? We've got you covered.

    AAC (Advanced Audio Codec) is a lossy audio compression format that is widely used for high-quality audio streaming and playback. It is a successor to the MP3 format and provides better audio quality at similar bit rates. It’s typically used in AAC (Advanced Audio Codec)?.

    AU is an audio file format developed by Sun Microsystems in the 1980s. It is commonly used for storing digital audio data, and was originally used for audio files on Unix-based systems. Commonly found in AU (Audio File)?.

    Why Convert AAC to AU?

    • To avoid needing specific apps to open the file.
    • To ensure your file size is smaller for faster sharing.
    • To make files easier to open across devices.

    Benefits of This Conversion

    • Faster upload and download speeds.
    • Improved compatibility across browsers and apps.
    • Optimized performance for web or mobile use.
    • Better organization by converting to standard formats.

    Use Case Scenarios

    • You're sending a AAC resume and want it as a AU to lock formatting.
    • Your website needs a lightweight version of your AAC to upload as AU.
    • You’re importing spreadsheet data from AAC into a system that only accepts AU.

    Conversion Tips

    • Convert only what you need to reduce processing time.
    • Check the converted file for formatting errors.
    • Avoid converting lossy formats multiple times.

    Programs That Open AU Files

    • AU files can be opened with a variety of media players like VLC Media Player, Audacity, or QuickTime on macOS.
    • Windows users can open AU files using VLC Media Player or install software like Winamp with the appropriate plugin.

    Did You Know?

    • Converting from DOCX to PDF ensures no fonts get lost.
    • MP3 compression can reduce file size by up to 90%.
    • CSV files are just plain text — super lightweight!

    Useful Resources

    How It Works

    How to Convert AAC to AU

    STEP 1

    Click inside the file drop area to upload your AAC file or drag & drop it.

    STEP 2

    Select AU as the output format and click the 'Convert' button.

    STEP 3

    Download the converted AU file instantly after conversion.

    STEP 4

    You can also send a link to the converted file via email. (Optional)

    Enterprise-Grade Security

    Protecting Your Data is Our Top Priority

    At RunConvert, we prioritize your data's security during every file conversion. Our advanced encryption protocols ensure that your files are protected throughout the entire process. Whether you're converting documents, images, or audio files, we host all our operations in secure data centers with constant monitoring, ensuring the safety of your information. We are committed to protecting your privacy by never storing your files longer than necessary and never sharing your data with third parties. With RunConvert, you can trust that your files are handled with the highest level of security, giving you peace of mind with every conversion.

    End-to-End Encryption

    Your files are encrypted from upload to delivery with AES-256 encryption standards.

    • Zero-knowledge architecture
    • TLS 1.3 protocol

    Secure Access Control

    Multi-factor authentication and role-based access management for your entire organization.

    • SAML & SSO integration
    • Audit logging

    Protected Storage

    Redundant, encrypted storage systems with geo-distributed backups and disaster recovery.

    • 99.99% uptime SLA
    • Automatic failover

    File Verification

    Automated integrity checks and malware scanning on all files before processing.

    • Real-time threat detection
    • Version control

    Security Certifications & Compliance

    We maintain the highest industry standards for data protection

    ISO 27001
    GDPR Compliant
    HIPAA
    SOC 2 Type II
    4.5 /5
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    What Our Users Say

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    Saved me hours of work

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    I've tried many conversion tools but this one is by far the fastest and most reliable. No watermarks, no quality loss, and the interface is so intuitive.

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