Turn your AAC file into a WAV that plays where you need it, right in your browser.
Drag and drop the file, or click to browse. Files up to 500 MB are supported, and nothing is installed.
WAV is already selected. Switch between MP3 and WAV if you change your mind.
We convert on our servers, usually in under a minute. Create a free account to download the WAV, or keep editing the file in REQO.
AAC is the codec inside almost every MP4. As a bare .aac stream it lacks the container metadata players rely on, which is why seeking and duration often misbehave until it is wrapped or converted.
The practical problem: Raw AAC streams frequently show the wrong duration or refuse to seek. Fewer players and podcast hosts accept a bare .aac file than an MP3.
WAV solves that. Lossless, so repeated edits and exports never compound compression artefacts. The format audio editors, DAWs and mastering tools expect.
| AAC | WAV | |
|---|---|---|
| Container | Raw AAC / ADTS stream | RIFF / WAVE |
| Typical codecs | AAC (lossy) | Uncompressed PCM |
| Best for | Audio pulled out of video files | Editing, mastering, voiceover work |
| Plays on | Most modern devices; bare streams can confuse players | Every desktop and audio tool; large for phones |
| File size | Similar to MP3, slightly better quality | About 10 MB per minute in stereo |
Yes. Convert and preview the result for free, then create a free account to download it. There is no per-file charge and no watermark on the WAV itself beyond the free-plan badge.
No. The conversion runs on our servers and the whole flow happens in your browser, so it works the same on Windows, macOS, Linux, iPhone and Android.
Converting to WAV adds no further loss, but it cannot restore anything the AAC encoder already discarded. You get a clean, uncompressed working file, not a better-sounding one.
Up to 500 MB per file. For anything bigger, trim or compress it first, both are free tools here.
Your upload is processed and then held only as long as your project needs it. Nothing is published, indexed or shared unless you create a share link yourself.
To MP3
Turn your AAC file into an MP3 that plays where you need it, right in your browser.
OpenTo WAV
Pull the audio out of any video and save it as WAV, right in your browser.
OpenTo WAV
Pull the audio out of your MP4 file and save it as WAV, right in your browser.
OpenTo WAV
Turn your MP3 file into a WAV that plays where you need it, right in your browser.
OpenTo WAV
Turn your M4A file into a WAV that plays where you need it, right in your browser.
OpenFree, in your browser, and the file stays open in a full video editor afterwards.