Free tools
Convert MP4 to WAV for free
Convert MP4 to WAV in your browser: add one MP4 file, and download an uncompressed WAV of its audio track. This free conversion needs no signup or upload.
Drop a file or click to choose
Free · no signup · runs in your browser · nothing uploads
Want the words, not just the clip?
Try a speaker-labeled preview of up to 5 minutes from your audio or video before creating an account, then get another free preview of your first upload in the app.
Get 30 free minutesWant the words, not just the clip?
Try a speaker-labeled preview of up to 5 minutes from your audio or video before creating an account, then get another free preview of your first upload in the app.
Get 30 free minutesWhy is this free? Hushscript runs it entirely in your browser. No server processes your file, so there's nothing to charge for.
How to convert MP4 to WAV
Add one MP4 file, then download the WAV. This online MP4 to WAV tool decodes the video’s audio track and writes it as uncompressed PCM, and the conversion runs on your device, so the file is not uploaded.
Why convert video to WAV
An audio editor or DAW often expects WAV rather than a compressed track pulled from a video container. Converting the MP4’s audio to WAV gives you a file most editing software can open directly, without a compressed intermediate format.
What the MP4 needs
The MP4 needs an audio track your browser can decode. Whether a specific file converts depends on its audio codec, container details, and your browser or device. If you want a choice of output format instead of WAV only, use video to audio; to keep a supported track without re-encoding, use extract audio from video.
Need a transcript instead of a WAV?
You can send your original MP4 to MP4 transcription without converting it here first. Transcription is separate from this free local converter: it uploads prepared audio and requires an account. Speaker labels are available when selected. Eligible personal accounts can receive 30 free minutes after card verification.
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Frequently asked questions
Is this MP4 to WAV converter free?
Yes. Converting one MP4 to WAV in your browser is free and needs no account. Transcription is a separate service with its own account and minute pricing.
Does converting MP4 to WAV upload my file?
No. The converter processes the MP4 in your browser and downloads the WAV to your device. Choosing transcription separately uploads prepared audio.
Why convert an MP4's audio to WAV?
WAV stores uncompressed PCM audio, which many audio editors and DAWs expect for editing, mixing or further processing.
Does the WAV lose quality compared to the MP4's audio?
No re-encoding step compresses it further: the audio is decoded and written as uncompressed PCM. Overall quality still depends on the audio already inside the source MP4.
Will every MP4 convert?
The MP4 needs a readable audio track. Success depends on the audio codec inside the file and your browser or device.
Can I transcribe the MP4 instead?
Yes, through the separate Hushscript transcription service, which uploads prepared audio and requires an account. Speaker labels are available when selected.
Need the words? Transcribe it with 30 free minutes
Preview up to 5 minutes before you create an account, and a new personal account gets a free preview of its first upload in the app. Full transcription needs an account and minutes; eligible personal accounts get 30 free minutes once, after card verification or with a first purchase. No subscription.
Get 30 free minutes