AAC (Advanced Audio Coding) is a digital audio coding standard designed to be the successor of MP3. Convert AAC files to FLAC format with our free online converter. FLAC (Free Lossless Audio Codec) is a lossless audio coding format for digital audio.
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Supported formats: MP3, WAV, AAC, OGG, FLAC, M4A
Maximum file size: 500MB
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100% free online conversion
No registration required
High-quality output
Fast processing
Secure and private
Multiple format support
Convert AAC audio for Audiophile listening
Change audio format for Music archiving
Optimize audio for Professional audio
Compatibility with different devices
Reduce file size while maintaining quality
Prepare audio for specific platforms
Choose the right quality settings for your needs
Higher quality means larger file sizes
Consider your target device's compatibility
Test the converted file before sharing
Keep original files as backup
Use appropriate bitrate for your use case
Yes, our aac to flac converter is completely free to use. No registration or subscription required.
We support MP3, WAV, AAC, OGG, FLAC, and M4A formats for both input and output.
Conversion time depends on file size and your device performance. Most files convert in 30 seconds to 2 minutes.
Quality loss depends on your settings. We use high-quality codecs to minimize quality loss during conversion.
Currently, you can convert one file at a time. We're working on batch conversion features.
Yes, all processing happens in your browser. Your files never leave your device, ensuring complete privacy.
Please ensure you have the right to convert the audio files you upload. This tool is for personal use only.