AAC to WAV converter
Convert AAC to WAV in your browser. Decodes to uncompressed PCM, which is what samplers and editors ask for — about 10 MB a minute in CD-quality stereo.
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Accepts .aac · Up to 20 files at a time · up to 538 MB each "Upload" and "download" here mean your browser reading a file from this device and writing one back to it. Nothing is sent to a server — open your browser's network panel and watch: no request carries your file.
FAQ
Does converting to WAV improve the audio?
No. The AAC is lossy and what it discarded cannot be recovered. WAV stops further loss from being added, which is a different and more useful thing.
Why does my .aac file not seek properly?
Because it is a raw stream with no container. Converting to WAV — or to M4A, which is AAC in a container — gives you a file that seeks reliably.
Why is the WAV so much larger?
Because it stores every sample uncompressed, about 10 MB per minute in CD-quality stereo. A compressed file that was small becomes proportionally large.
When should I choose this over AAC to MP3?
When the audio is going into software rather than a player. Editors, samplers and game engines want PCM; MP3 would add a second lossy generation for no benefit.
Is FLAC an option instead?
Yes and usually a better one — identical samples at roughly half the size, readable by most editors. Choose WAV only when a tool insists on uncompressed input.
Is it really free?
Yes — every conversion on this site, with no account, no watermark and no daily cap. The work happens on your own device, so there is no server bill for us to pass on to you.
Do I need to install anything?
No. It runs in any modern browser, on Windows, macOS, Linux, Android and iOS. There is nothing to download and nothing to sign up for, and once the page has loaded it keeps working with the network switched off.
Related converters
- WAVtoAACRe-encodes to AAC — a second lossy pass
- AACtoMP3Re-encodes to MP3 — a second lossy pass
- MP4toWAVDrops the video, keeps the audio losslessly as WAV
- MP3toWAVDecodes to WAV, which stores audio losslessly
- FLACtoWAVDecodes to WAV, which stores audio losslessly
- OGGtoWAVDecodes to WAV, which stores audio losslessly
- OpustoWAVDecodes to WAV, which stores audio losslessly
- M4AtoWAVDecodes to WAV, which stores audio losslessly