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Download App for only $15AAC is Apple's Advanced Audio Codec offering better quality than MP3 at the same bitrate, while FLAC is a lossless audio format beloved by audiophiles for its perfect reproduction of sound. Switching between audio formats is often needed for device compatibility, streaming platforms, or audio editing pipelines. MediaForge converts your AAC audio to FLAC entirely within your browser using WebAssembly — no uploads, no waiting, no privacy concerns. Upload your AAC file above and get your high-quality FLAC output in seconds, ready to download and use anywhere.