Convert

Convert AAC to FLAC

Advanced Audio Coding in a raw AAC bitstream. Lossless compressed audio with broad playback support.

Free to use — no account or signup required.
Your file is deleted the moment the conversion finishes.
Handles large files — up to 1 GB per conversion.
Prefer code? The same conversion is one API call away.

io bay · AAC → FLAC

Input · AACDrop a AAC file here, or click to browse.aac

Idle

Questions

faq

How do I convert AAC to FLAC?

Upload or paste your AAC file, press Convert, and download the FLAC result. It's free and no account is required.

Is my file kept after conversion?

No. Your uploaded file is deleted the moment the conversion finishes, and the converted output expires shortly after.

Can I run this conversion over an API?

Yes. The same AAC to FLAC conversion is available as a REST API.