MP4 to MP3 Converter
FREE
Convert MP4 to MP3 online free. Free MP4 to MP3 converter — turn MP4 into MP3, switch video to MP3 audio with selectable bitrate, no server upload.
Drop MP4 file here or
WAV is uncompressed PCM audio (44.1 kHz, stereo), so output files can be larger than MP3.
First run downloads FFmpeg (~25 MB) once in this browser. Audio extraction runs locally — no server upload.
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MP4 to WAV converter online free
Convert MP4 to WAV online free. Free MP4 to WAV converter — extract video to WAV / Wave audio from MP4 with no server upload.
What is an MP4 to WAV converter?
An MP4 to WAV converter (also searched as MP4 to wave, video to WAV converter, or .mp4 to .wav) extracts audio from MP4 video and saves it as uncompressed Wave/WAV. Use it to convert MP4 to WAV, transform MP4 to WAV, or pull PCM audio for editing. This free online MP4 to WAV converter runs locally with FFmpeg WebAssembly — no server upload.
MP4 to WAV converter features
Free online MP4 to WAV and video to WAV converter in the browser.
Convert MP4 to WAV online
Upload MP4 and export the audio track to WAV in your browser.
Video to WAV converter
Convert video to WAV when you only need the soundtrack from an MP4.
MP4 to wave
Turn MP4 into Wave (.wav) PCM audio for DAWs and editors.
MP4 video to WAV converter
Extract uncompressed audio from MP4 video files in a few clicks.
Uncompressed WAV output
Outputs PCM WAV (44.1 kHz stereo), suitable for editing and archiving.
No server upload
Conversion is local via FFmpeg WebAssembly for privacy.
How to convert MP4 to WAV
Convert MP4 video to WAV or .mp4 to .wav in three steps.
Upload MP4 file
Drop or choose an MP4 video file (up to 200 MB).
Start conversion
Click Convert to WAV to extract the audio stream.
Download WAV
Save the output WAV / Wave file to your device.
Great for
Common MP4 to WAV and video to WAV use cases.
Audio editing
Use WAV output in DAWs where uncompressed source is preferred.
Transcription prep
Extract clear audio from lectures or interviews stored as MP4 video.
Sound design
Isolate audio from video clips for effects, sampling, or remixing.
Archive workflows
Keep raw, uncompressed WAV copies for long-term audio preservation.
Frequently Asked Questions
Quick answers about this tool—open a question to read more.