Convert AAC to FLAC Online Free
Convert AAC to FLAC instantly in your browser. No uploads needed - your files stay private on your device.
drag & drop files here
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images, videos, audio, documents - all processed locally
Why convert AAC to FLAC?
- ✓FLAC preserves full audio quality without compression loss
- ✓Ideal for archiving and professional audio production
- ✓Maintain the highest possible audio fidelity
- ✓Required for professional mastering and editing
How to convert AAC to FLAC
Upload your file
Drag and drop your AAC file onto the converter, or click to browse your files.
Select FLAC as output
Choose FLAC from the format dropdown. The converter will automatically detect your file type.
Convert instantly
Your file is processed entirely in your browser using WebAssembly. No upload needed.
Download your file
Click the download button to save your converted FLAC file.
About AAC format
AAC is a modern audio codec that outperforms MP3 at the same bitrate, offering better sound quality in smaller files. Developed as MP3's successor, AAC is the default format for Apple Music, YouTube, and many streaming services. It's widely supported on mobile devices and modern platforms.
Pros
- +Better quality than MP3 at same bitrate
- +Standard for streaming services
- +Excellent mobile device support
Cons
- -Some older devices don't support it
- -Licensing can be complex
- -Less universal than MP3
About FLAC format
FLAC is the leading lossless audio compression format, reducing file sizes by 50-60% while preserving perfect audio quality. Open-source and royalty-free, FLAC is the choice of audiophiles and music collectors who refuse to compromise on sound quality. It supports high-resolution audio up to 32-bit/192kHz.
Pros
- +Lossless compression with smaller sizes than WAV
- +Open source and royalty-free
- +Supports high-resolution audio
Cons
- -Larger than lossy formats
- -Limited portable device support
- -Overkill for casual listening