Convert AAC to FLAC
Fast, free AAC to FLAC conversion — works in any browser
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aac
Advanced Audio Coding (AAC)
| File extension | .aac |
|---|---|
| File category | audio |
| Programs | Apple iTunes VLC media player Windows Media Player Winamp foobar2000 |
| Tech description | https://en.wikipedia.org/wiki/Advanced_Audio_Coding |
| MIME type | audio/aac |
| Developer | AT&T Bell Labs, Fraunhofer IIS, Dolby, Sony |
AAC (Advanced Audio Coding) is a lossy audio compression format standardized by the MPEG group in 1997, designed as the successor to MP3. At the same bitrate, AAC delivers noticeably better audio quality thanks to improved psychoacoustic modelling, support for up to 48 audio channels, and sampling frequencies from 8 to 96 kHz. AAC is the default audio format on Apple devices, iOS, iTunes, and YouTube. Files typically use the .aac or .m4a extension. Developed jointly by AT&T Bell Labs, Fraunhofer IIS, Dolby, and Sony, AAC is natively supported on Android, iOS, Windows, macOS, and most modern media players.
flac
FLAC — Free Lossless Audio Codec
| File extension | .flac |
|---|---|
| File category | audio |
| Programs | VLC media player foobar2000 Audacity Amarok Banshee |
| Tech description | https://en.wikipedia.org/wiki/FLAC |
| MIME type | audio/flac audio/x-flac |
| Developer | Josh Coalson (Xiph.Org) |
FLAC (Free Lossless Audio Codec) is an open-source lossless audio compression format developed by Xiph.Org and released in 2001. Unlike MP3 or AAC, FLAC preserves every bit of the original audio data, allowing perfect reconstruction of the source. Compression typically reduces file size by 40–60% compared to uncompressed WAV or AIFF. FLAC supports up to 32-bit sample depth and 655 kHz sampling rate, as well as embedded metadata tags and cover art. It is royalty-free and widely supported on Android, Linux, Windows, and macOS, as well as media players including VLC, foobar2000, Audacity, and most hi-fi audio hardware.
FAQ
How to convert FLAC to AAC?
Upload your FLAC file, select AAC as the output format, and click Convert. The converted file will be ready to download in seconds — no account or installation required.
How long does it take to convert FLAC to AAC?
Most FLAC files convert in seconds. Larger files may take up to a few minutes depending on size and internet speed. You can track the progress bar in real time during conversion.
Is it safe to convert FLAC files online?
Yes. All uploaded FLAC files and converted AAC results are automatically deleted from our servers within 1 hour after conversion. We do not store, share, or access your files.
Can I convert FLAC on iPhone or Android?
Yes, our converter works on all devices and operating systems — iPhone, iPad, Android, Windows, and macOS. Open the site in your mobile browser, upload the FLAC file and convert to AAC without installing any app.
