AAC to WAV Converter
Runs in your browser — your files are never uploaded.
Convert a bare AAC audio stream to uncompressed WAV. Handy when you have pulled an .aac file out of a stream or recording and need something an audio editor will actually open. This decodes the AAC and writes standard 16-bit PCM. Runs entirely in your browser.
How to convert AAC to WAV
- 1
Drop your .aac file onto the box, or click to choose one.
- 2
OkConverter loads the conversion engine (one-time per session) and decodes to PCM.
- 3
Click “Download” to save the .wav file.
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Frequently asked questions
What is the difference from M4A to WAV?+
A .aac file is a bare ADTS stream with no container; .m4a wraps the same kind of audio in an MP4 box. Use this tool for raw .aac and the M4A converter for .m4a — the decoding is otherwise identical.
Why is my WAV slightly longer than the AAC?+
AAC encoders add a short run of priming samples at the start, and a raw ADTS stream carries no metadata saying how many to trim. A few milliseconds of silence at the beginning is normal and harmless.
Does the quality improve?+
No. AAC is lossy and what it discarded is gone. The WAV simply prevents further loss when you edit.
Is my file uploaded anywhere?+
No. Once the engine has loaded, decoding happens entirely inside your browser tab.