Free online AU to FLAC converter

Understanding AU and FLAC file formats

AU is an audio file format developed by Sun Microsystems, commonly used on Unix systems. It typically contains uncompressed or μ-law encoded audio data and is recognized by its simple header and .au file extension.

FLAC (Free Lossless Audio Codec) is a popular open-source audio format that compresses audio without any loss in quality. FLAC files are widely supported and preferred for archiving and high-fidelity playback due to their efficient compression and perfect sound reproduction.

Why convert AU to FLAC?

Converting AU files to FLAC allows you to preserve the original audio quality while reducing file size. FLAC is also more compatible with modern audio players and devices, making it easier to manage and share your audio files.

Best software for AU to FLAC conversion

Audacity is a free, open-source audio editor that supports both AU and FLAC formats. It is available for Windows, macOS, and Linux, making it a versatile choice for audio conversion.

How to convert AU to FLAC using Audacity

1. Download and install Audacity from the official website.
2. Open Audacity and go to File → Open to select your AU file.
3. Once the file is loaded, go to File → Export → Export as FLAC.
4. Choose your desired settings and click Save.

Audacity will convert your AU file to FLAC, preserving the original audio quality.

Alternative converters

• fre:ac – A free audio converter supporting AU and FLAC formats.
• Online Audio Converter – A web-based tool for quick AU to FLAC conversions without installation.

Conclusion

Converting AU files to FLAC ensures better compatibility and efficient storage without sacrificing audio quality. Audacity is the recommended tool for this conversion, offering a simple and reliable workflow.