AAC to FLAC Converter
Convert AAC to FLAC online with Convertig.com. Free, fast, and secure audio converter—no software required. Upload your file and get lossless FLAC output.
100 MB maximum file size and upto 5 files.
300+ formats supported
We support more than 25600 different conversions between more than 300 different file formats. More than any other converter.
Fast and easy
Just drop your files on the page, choose an output format and click "Convert" button. Wait a little for the process to complete.
How to use AAC to FLAC Converter?
- Click the “Choose Files” button to select your files (up to 20 files at a time)
- Click on the “Convert” button to start the conversion
- When the status change to Done” click the “Download” button
AAC to FLAC Converter FAQs
No, it will not. The FLAC format is lossless, but it cannot magically restore audio data that was already discarded when the compressed AAC file was created. Your new FLAC file will be a perfect, high-quality copy of your source AAC, including any and all of its existing audio imperfections.
The main practical reason is to create a stable, lossless master file for professional audio editing or long-term archiving. By converting your AAC to FLAC, you prevent any further quality degradation that might occur from repeated saves or edits. It's a way of preserving your audio at its current quality level in a robust, archival format.
The file size increases substantially because AAC uses lossy compression, which discards audio information to achieve very small files. FLAC uses lossless compression, which works like a ZIP file for audio, perfectly preserving every bit of sound data. This perfect preservation of the audio waveform requires a much larger file size.
No, that's impossible. The FLAC file will be a perfect audible replica of the source AAC file. It will sound exactly the same to the human ear, with no improvements and no degradation introduced by the conversion process. If your source AAC has any flaws, the FLAC will have those exact same flaws.
Yes, for archiving, FLAC is often considered a superior choice. Both FLAC and WAV will store your audio with identical, perfect quality, but a FLAC file is typically 40-60% smaller than a WAV file thanks to its efficient lossless compression. This saves a significant amount of storage space without sacrificing any audio fidelity.