Audio & video
Convert MP4 to WAV
Uncompressed audio, for editing rather than listening.
Drop a video or audio file here
MP4, M4A, WAV, OGG · nothing is uploaded
How it works
- 1Choose a file, or drag one onto the box.
- 2The audio track is decoded by your browser's own decoder.
- 3It is re-encoded as uncompressed WAV on your machine.
- 4Download it.
Specification
- Output
- WAV, 16-bit PCM
- Bit rate
- Uncompressed
- Sample rate
- Unchanged from the source
- Length limit
- 25 minutes — the whole track is decoded into memory
- Uploads
- None — the file never leaves your browser
Questions
Does converting to WAV lose quality?
WAV is uncompressed, so nothing is lost on top of what the source already lost. It cannot recover detail the original encoder threw away — it just stops taking any more. The files are large, which is the trade.
Which files can I use?
Anything your browser can already play — MP4, M4A, AAC, MP3, WAV and OGG all work. MKV and WMV generally do not, because browsers do not ship decoders for them.
Is there a length limit?
25 minutes. Converting in the browser means decoding the entire track into memory first, roughly 21 MB per minute, and past that point a tab becomes unreliable. The tool refuses up front rather than crashing partway through.
Is my file uploaded anywhere?
No. Your browser's own audio decoder does the work and the encoder runs on your machine. Nothing is sent to a server.
Is this the same as "video to wav"?
Yes. It also gets called "mp4 to wav converter". They all describe this one job, and this page does it.