AAC to FLAC Converter

Wraps the audio in a lossless FLAC container. Useful when your library management tools organize by FLAC format.

audio_file

Drag & drop audio files here, or browse

Drop your AAC files here

How It Works

  1. Add your AAC files Drag and drop AAC files onto the page, or click to pick them from your file browser.
  2. Pick your settings Choose quality settings for FLAC output like bitrate, quality level, or compression.
  3. Convert Click convert and FFmpeg WebAssembly processes your files right in the browser. Nothing gets uploaded.
  4. Download Grab your converted FLAC files one at a time or download them all as a ZIP.

Features

Supported Formats

FAQ

Why convert AAC to FLAC?

Wraps the audio in a lossless FLAC container. Useful when your library management tools organize by FLAC format.

How do I convert AAC to FLAC?

Drop your AAC files onto this page, pick your quality settings for FLAC output, and click Convert. Everything runs in your browser and nothing is uploaded.

What is AAC (Advanced Audio Coding)?

AAC sounds better than MP3 at the same bitrate and is the default audio format on Apple devices. If you listen on an iPhone, iPad, or through iTunes, your music is probably AAC.

What is FLAC (Free Lossless Audio Codec)?

FLAC compresses audio to about half the original size without losing any quality. You can always decode it back to the exact original. Popular for music archiving and audiophile collections.

Are my files private?

Yes. All conversion happens in your browser using WebAssembly. Your audio files never leave your device and aren't uploaded anywhere.

Is there a file size limit?

There's no hard limit, but very large files (over 2 GB total) may be slow or run into browser memory constraints.

Other conversions from AAC

Other ways to get FLAC

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