AU→OPUSConverter
Convert your AU files to OPUS format instantly. Free, fast, and secure - your files never leave your browser.
↔ Convert OPUS to AU insteadDrop file or click to browse
Max 100MB • Auto-deletes after 3 min
How to Convert AU to OPUS
Upload Your File
Drag & drop your AU file or click to browse. Files up to 100MB are supported.
Convert
Click "Convert to OPUS" and wait a few seconds for processing.
Download
Download your converted OPUS file instantly. No registration needed.
Why Convert AU to OPUS?
Converting AU to OPUS helps ensure compatibility with your preferred audio player, editing software, or streaming platform.
About AU and OPUS
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 OPUS?
Opus is a modern, open-source audio codec designed for interactive real-time applications. It offers the best audio quality at low bitrates of any codec and is used by Discord, WhatsApp, and WebRTC.
Frequently Asked Questions
How do I convert AU to OPUS?
Upload your AU file using the converter above, then click "Convert". Your file will be processed and you can download the converted OPUS file immediately. The entire process takes just seconds.
Is it free to convert AU to OPUS?
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 OPUS 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 OPUS format individually for the best quality results.