Convert AAC to WAV
Convert AAC to WAV right in your browser — free, private, nothing is uploaded. Get a lossless file any editor opens — no further quality loss.
Convert AAC to WAV →Free · Private — runs in your browser, nothing is uploaded
AAC is the codec behind M4A files, streaming services and much of broadcast audio; as a bare .aac stream it carries the same lossy audio without the MPEG-4 wrapper — and without proper tag support.
WAV stores raw, uncompressed PCM samples — the audio equivalent of a bitmap. Files are huge, but every editor, DAW and operating system opens them without a second thought.
Converting AAC to WAV is about compatibility rather than quality: some editors, DAWs and pipelines simply insist on WAV. You get a file they open natively — but the audio can never get better than the AAC you start from.
AAC vs WAV
| AAC | WAV | |
|---|---|---|
| Compression | lossy — some detail traded for size | lossless — nothing discarded |
| Codec / container | raw AAC (Advanced Audio Coding) stream | uncompressed 16-bit PCM in a RIFF container |
| Typical file size | small — similar to MP3 at the same bitrate | very large — roughly 10 MB per minute of 16-bit stereo |
| Best for | streams, broadcast audio and recorder output | editing, DAWs and audio production |
| Strength | modern lossy codec, efficient at every bitrate | universal uncompressed PCM — ideal for editing |
| Watch out for | bare .aac streams carry no metadata and trip up some players | huge files for what they hold |
| Compatibility | the codec is everywhere, but fewer apps open bare .aac files | universal — opens in every editor and OS |
How the conversion works
- Choose your AAC file (up to 10 MiB). The button above opens the converter with WAV already selected as the target format.
- There is no bitrate to choose: WAV is lossless, so the bitrate field is simply ignored.
- Run the conversion and download the result — the output keeps your filename with a .wav extension. Everything happens locally: the page runs ffmpeg compiled to WebAssembly, so your audio is never uploaded to a server.
What to expect
No quality is restored. WAV preserves exactly what's in your AAC file — detail the AAC encoder already discarded is gone for good. Expect a much larger file with identical sound; convert because a tool needs WAV, not to upgrade the audio.
Embedded album art is dropped along the way: cover images ride along as a video stream, which audio-only outputs like WAV can't carry.
FAQ
Does converting AAC to WAV improve the audio quality?
No. WAV preserves exactly what's in the source — detail the AAC encoder already discarded is gone for good. Convert because a tool needs WAV, not to upgrade the sound.
Why is the WAV file so much larger than my AAC?
AAC stores heavily compressed audio; WAV expands it to raw PCM (about 10 MB per minute of stereo) — so the same sound takes several times the space. That's normal, and the extra bytes don't add quality.
Is my AAC file uploaded when converting to WAV?
No. The page downloads an ffmpeg WebAssembly build once, then converts your file locally in the browser tab — the audio never leaves your device. Input files up to 10 MiB are supported.