AU→FLACConverter
Convert your AU files to FLAC format instantly. Free, fast, and secure - your files never leave your browser.
↔ Convert FLAC to AU insteadDrop file or click to browse
Max 100MB • Auto-deletes after 3 min
How to Convert AU to FLAC
Upload Your File
Drag & drop your AU file or click to browse. Files up to 100MB are supported.
Convert
Click "Convert to FLAC" and wait a few seconds for processing.
Download
Download your converted FLAC file instantly. No registration needed.
Why Convert AU to FLAC?
Converting AU to FLAC preserves audio quality with lossless compression, ideal for archiving your music library and audiophile listening.
About AU and FLAC
What is AU?
AU (.au) is a widely-used audio format. ModConvert supports converting AU files to 16 different formats including MP3, WAV, FLAC, OGG and more.
What is FLAC?
FLAC (Free Lossless Audio Codec) provides bit-perfect audio compression, reducing file sizes by 50-70% without any quality loss. The preferred format for audiophiles and music archiving.
Frequently Asked Questions
How do I convert AU to FLAC?
Upload your AU file using the converter above, then click "Convert". Your file will be processed and you can download the converted FLAC file immediately. The entire process takes just seconds.
Is it free to convert AU to FLAC?
Yes, ModConvert is completely free to use. There are no hidden charges, no registration required, and no watermarks on your converted files.
Is my AU file safe when converting?
Absolutely. Your files are processed securely and are never stored permanently on our servers. Files are automatically cleaned up after conversion to protect your privacy.
What is the maximum file size for AU to FLAC conversion?
You can convert AU files up to 100MB in size. This covers most common use cases for audio files.
Can I convert multiple AU files at once?
Yes, you can upload and convert multiple AU files. Each file will be converted to FLAC format individually for the best quality results.