AAC to WAV
Decode an AAC stream — either a raw .aac file or an .m4a container — and re-encode it as 16-bit PCM WAV (CD quality). WAV is lossless and ideal for editing in a DAW, archival, or any pipeline that expects uncompressed audio. Note that AAC is a lossy format, so the WAV will be a faithful copy of the decoded audio but won't recover information that was discarded during the original AAC encode — you can't get true lossless from a lossy source. The conversion runs entirely in your browser via ffmpeg.wasm.
Drop .aac / .m4a file here
or click to choose
Privacy
Runs entirely in your browser — nothing is sent to any server.
Cost
Free. No sign-up, no watermark.
Supports
.aac, .m4a → .wav
Related tools
Tools that work with the same formats — most users open one of these next.
AAC to MP3
Convert AAC or M4A audio to MP3 — free online, no upload.
MP3 to WAV
Convert MP3 audio to uncompressed WAV — free online, no upload.
FLAC to WAV
Convert FLAC lossless audio to uncompressed WAV — free online, no upload.
OGG to WAV
Convert Ogg Vorbis audio to uncompressed WAV — free online, no upload.
M4A to WAV
Convert M4A audio to uncompressed WAV — free online, no upload.
WAV to MP3
Convert WAV audio to MP3 with selectable VBR quality — free online, no upload.
Frequently asked
Is AAC to WAV free to use?
Yes. AAC to WAV is completely free with no sign-up, no watermark, and no usage limits. Toolsly does not charge for any of its tools.
Do my files and data stay private?
Yes — AAC to WAV runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.
How does AAC to WAV work?
Open AAC to WAV, drop in your AAC, M4A file, choose any options, and click Convert. Your browser does the work locally and produces a WAV file you can save right away.
What's the maximum file size for AAC to WAV?
Because AAC to WAV runs in your browser, the maximum size depends on your device's available memory. Most modern phones and laptops handle files up to a few hundred MB without issues.