Convert AAC to FLAC — Free Online
Convert Advanced Audio Coding to Free Lossless Audio Codec format online. Lossless audio compression. Free converter with no registration, no watermar...
Drop files here or click to browse
Supports: AAC files
Max: 100MB (free) · 2GB (Pro)
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Files auto-deleted after processing
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Works Everywhere
Any browser, any device
How to Convert
Upload your .aac file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .flac file when it's ready.
About AAC to FLAC Conversion
Transform your AAC audio files into FLAC format with our free online converter. Lossless audio compression, and our conversion engine preserves audio characteristics while adapting to FLAC's technical specifications. Perfect for building compatible audio libraries.
Why Convert AAC to FLAC?
**Device Support:** FLAC format enjoys broader support across devices and operating systems than AAC. Mobile phones, tablets, computers, and smart devices handle FLAC files natively, eliminating the need for specialized apps or codecs.
**Professional Output:** FLAC format's Lossless quality ensure your converted files meet professional standards. Whether for web, print, or distribution, the quality satisfies demanding requirements.
**Standardization:** Using FLAC as a standard format simplifies file management. Consistent formats across your library reduce complexity and improve organization.
Common Use Cases
- Build compatible playlists from various audio sources
- Share AAC recordings with recipients expecting FLAC
- Prepare AAC podcasts or voice recordings for distribution
- Create FLAC versions of AAC music for portable players
- Play AAC music on devices that only support FLAC
How It Works
Our converter leverages FFmpeg multimedia framework for precise AAC to FLAC transformation. This professional-grade engine handles Efficient lossy compression, successor to MP3 input and produces lossless compression achieving 50-60% size reduction output.
The conversion process decodes your AAC content fully, then re-encodes using FLAC's optimal settings. This ensures lossless quality in the final file.
Processing happens on secure cloud infrastructure with automatic file deletion after conversion. Your audio files never touch local storage.
Quality & Performance
AAC to FLAC conversion preserves content exactly. Every detail of your original transfers to the FLAC output without alteration.
Start converting your AAC files to FLAC format now. Our free online converter delivers lossless results with fast processing, secure handling, and no software installation required.