AAC to AU converter. Convert AAC files to AU. No sign-up, no watermark, 100% private.
Three steps, a few seconds — no account needed.
Drag and drop or browse to add your AAC file.
The output format is set to AU automatically.
Save your new AU file instantly.
Turn your file into a share-worthy AI Effect — one tap, no prompts.
Common formats are processed right in your browser; advanced formats use our secure server and are deleted immediately — never stored.
No queue and no daily limits. Use it as much as you want, free forever.
Download clean files immediately — no account, no email, no watermark.
SharkFoto's free AAC to AU converter changes your AAC files into AU in a couple of clicks. Common formats are processed right in your browser; advanced formats use our secure servers and are deleted immediately after conversion — never stored.
AU is a widely-supported format. Converting from AAC — your source format — makes your files easier to share, edit and open everywhere.
AU uses efficient compression; you can keep quality high while getting a smaller, more compatible file.
AAC is the successor to MP3, delivering better sound at the same bitrate. It’s the default for Apple Music, YouTube and streaming.
AAC plays on virtually all modern devices and players.
Yes — it’s completely free with no sign-up, no watermark and no limit on how many files you convert.
Yes. Common formats are converted right in your browser; advanced formats use our secure server and are deleted immediately after conversion — never stored.
You can keep quality high; AU balances quality and file size well.
Drop your AAC file in, the output is set to AU, then click download — no software to install.
Yes — convert as many AAC files to AU as you like, free and unlimited.
Fast, clean and totally free — aac to au done in seconds, no waiting around.
Love that my files are never stored. No sign-up, no watermark, just the result.
Bookmarked. The best free aac to au I’ve found — simple and reliable.