Convert MP4 to WAV
Turn an MP4 video into an uncompressed WAV file — ideal for editing. Upload, convert, download.
Files are processed temporarily and deleted automatically. We keep no permanent copies.
How it works
- Upload a file.
- Choose the format and quality.
- Convert and download the result.
Why editors want WAV, not MP3
This tool exists for one audience: people taking audio out of a video to work on it. Audio editors, DAWs and video production suites prefer uncompressed WAV input because every edit, effect and re-export of a compressed file stacks another round of loss on top of the last one. Starting from WAV means your processing chain only compresses once - at the very end, when you export the finished piece.
Typical cases: cleaning up the audio of an interview before re-syncing it to the picture, sampling a sound from your own footage, transcribing from a high-quality source, or pulling a voiceover out of an old project file you no longer have the session for.
What WAV can and cannot give you here
A necessary honest note: the audio inside an MP4 is already compressed (usually AAC). Converting it to WAV gives you an uncompressed container for editing, but it cannot restore detail the original compression already discarded. Think of it as a clean workbench, not a time machine - the point is to avoid further loss, not to undo past loss.
Expect big files: uncompressed audio runs to roughly ten megabytes per stereo minute. That's the format doing its job. Work on the WAV, and when you're done, export your final mix to whatever compressed format the destination needs.
Related tools
FAQ
Will converting to WAV improve the audio quality?
No - and any tool claiming otherwise is misleading you. The MP4's audio is already compressed, and WAV can't recover what compression removed. What WAV gives you is a working format that won't degrade further through editing and re-saving.
How big will the WAV file be?
Plan for roughly ten megabytes per minute of stereo audio - an hour-long recording lands around half a gigabyte. That's normal for uncompressed audio; keep the WAV for the editing phase and export compressed when you're done.
Which editing software accepts the resulting WAV?
Effectively all of them - WAV is the least problematic audio format in existence for editors. Audacity, every major DAW, and the audio tracks of any video editor accept it without conversion or plugins.
Is my footage kept after the conversion?
No. The uploaded video is processed temporarily and deleted automatically, and the WAV's download link expires shortly after being issued. Download your file promptly; re-run the conversion if the link lapses.
Should I use MP3 instead for casual listening?
Yes. If the audio is just going to be listened to - not edited - WAV's size buys you nothing. Our MP4 to MP3 tool produces a far smaller file that sounds the same in normal listening.