AAC Converter
Convert files to and from AAC — free, online, no signup.
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AAC (Advanced Audio Coding) is a lossy audio codec standardized in 1997 as the successor to MP3. It achieves noticeably better quality at the same bitrate and powers YouTube audio, Apple Music, Android, and most streaming platforms today.
| Full name | Advanced Audio Coding |
| Developer | MPEG (Fraunhofer, AT&T, Sony, Dolby) |
| Released | 1997 |
| Type | Lossy compression |
| Typical use | streaming audio, YouTube, mobile devices |
| MIME | audio/aac |
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Frequently asked questions
How do I open a AAC file?
AAC (Advanced Audio Coding) is a lossy audio codec standardized in 1997 as the successor to MP3. It achieves noticeably better quality at the same bitrate and powers YouTube audio, Apple Music, Android, and most streaming platforms today. If a device refuses to open it, the fastest fix is converting it to a more universal format with the converter above.
Is converting AAC files free?
Yes — 10 conversions a day with files up to 200 MB, free, with no signup and no watermarks.