AAC to FLAC Converter — Free Online

Free online AAC to FLAC converter — quickly transform your audio files without registration or software installation. Our service lets you convert aac to flac in just a few clicks. Conversion happens right in your browser — files are never uploaded to a server and stay on your device. FLAC preserves 100% of original audio quality while compressing to 60% of WAV size. The gold standard for audiophiles. Try our aac to flac converter right now!

🔄 How AAC to FLAC Converter Works

Our free aac converter quickly produces FLAC files. Upload source files, choose settings, and click "Convert".

Batch conversion saves time — process multiple files in one session. Flexible bitrate settings help balance quality and size.

AAC to FLAC online — no software installation. Open the site on any device with a browser and start converting now.

🎯 Problems This Converter Solves

Can't open AAC file?

Not all software works with AAC. Convert to compatible FLAC.

💡 Common Uses for FLAC

🎵 Lossless audio archiving

🎛️ Professional audio processing

📀 Create master album copy

🔊 Hi-Fi system playback

✨ Our Converter Advantages

⚡ Instant Conversion

Audio file conversion takes just seconds

📦 Multiple Files

Convert up to 10 files at once with a single click

📱 Any Device

Works on smartphones, tablets, and computers

🔒 Data Protection

Files are removed immediately after download

⚙️ Custom Options

Control bitrate and sample rate

💰 Zero Cost

No hidden fees or subscriptions

📊 Format Comparison

AAC Compact format

Advanced Apple codec. Better than MP3 at equal bitrate.

FLAC High quality

Lossless compression. Full quality preservation.

❓ Frequently Asked Questions

How do I change AAC to FLAC?

Drag and drop your AAC file, choose FLAC as target format, and start conversion. Download the result instantly.

Do I need to pay for AAC to FLAC conversion?

No payment needed. The service is free, with no subscriptions or hidden costs.

Is quality lost when converting AAC to FLAC?

Quality won't be restored — lost data can't be recovered. However, the file becomes compatible with lossless software.

Is batch AAC conversion supported?

Sure! Upload up to 10 AAC files and convert them all with a single click.

Is there a file size limit for AAC?

Maximum 100 MB per file. All processing happens locally on your computer.

Are my files uploaded to a server?

No, files stay on your device. The browser performs conversion locally using WebAssembly technology.

📝 How to Convert AAC to FLAC

1

Upload File

Drag & drop AAC files or click "Choose Files"

2

Adjust Settings

Choose quality, bitrate and other options

3

Convert

Click "Convert" and wait for processing

4

Download Result

Download your FLAC files