MP4 to WAV Converter
Extract audio from MP4 video to lossless WAV format. Free, online, no software needed. Up to 100 MB.
Drop your MP4 file hereTap to choose your MP4 file
or
Also supports MOV, MKV, AVI, WebM, WMV, FLV • Max 100 MB
How to Convert MP4 to WAV
Upload
Drag and drop your MP4 video into the converter above, or click Choose MP4 File to browse your device.
Extract Audio
Click Convert to WAV. Our server extracts the audio track from your video and saves it as an uncompressed WAV file.
Download
Click Download WAV to save the lossless audio file. That's it — no registration, no email required.
Extract Lossless Audio from MP4 on Any Device
On Windows 10/11
Windows has no built-in way to extract audio from video files. You would need to install FFmpeg and use the command line, or download third-party software like Audacity. With Convertio, you can extract lossless WAV audio from any MP4 directly in your browser — no installation, no command line. Just upload, convert, and download the WAV file to your PC.
On Mac
QuickTime Player can export audio from video, but only to M4A (AAC) — a lossy format. For lossless WAV extraction, you would need GarageBand, Logic Pro, or command-line FFmpeg. Convertio gives you a faster alternative: upload your MP4 in Safari or Chrome, and download the extracted WAV audio in seconds. Works on any Mac without installing additional software.
On iPhone / iPad
iOS has no native way to extract audio from video files. Apps like GarageBand can import video but add unnecessary complexity for a simple extraction task. With Convertio, open Safari, upload your MP4 from the Files app or Camera Roll, and download the WAV file directly to your device. The extracted audio is ready to use in any iOS audio app.
On Android
Android lacks a built-in audio extraction tool. Most Play Store apps that offer this feature are ad-heavy and compress the output. Convertio works entirely in your mobile browser — Chrome, Firefox, or Samsung Internet. Upload the MP4 from your gallery or file manager, extract the audio to lossless WAV on our server, and download the result without installing anything.
What is MP4?
MP4 (MPEG-4 Part 14) is the most widely used video container format. Based on Apple's QuickTime MOV architecture, it was standardized as ISO/IEC 14496-14 and is supported by every device, browser, and platform manufactured in the last 15 years.
MP4 files typically contain H.264 or H.265 video with AAC audio. The format also supports subtitles, chapter markers, and metadata. MP4 is the recommended upload format for YouTube, Instagram, TikTok, and every major social media platform.
The audio track inside an MP4 file is almost always compressed — AAC at 128–256 kbps is the standard. To use this audio for editing, production, or archival purposes, extracting it to an uncompressed format like WAV gives you a lossless working copy.
What is WAV?
WAV (Waveform Audio File Format) is an uncompressed audio format developed by Microsoft and IBM in 1991. It stores raw PCM (Pulse-Code Modulation) audio data, preserving every sample of the original sound without any compression or data loss.
The standard WAV format uses 44.1 kHz sample rate and 16-bit depth (CD quality), producing approximately 10 MB per minute for stereo audio. Professional recordings may use 48 kHz, 96 kHz, or even 192 kHz at 24-bit or 32-bit depth for higher fidelity.
WAV is the standard working format in music production, podcasting, voice-over, film scoring, and audio engineering. Every DAW (Audacity, Pro Tools, Logic Pro, Ableton Live, FL Studio) works natively with WAV files. Its universal support and lossless quality make it the default choice whenever audio fidelity matters.
MP4 vs WAV: Quick Comparison
| Feature | MP4 | WAV |
|---|---|---|
| Type | Video + audio container | Audio-only format |
| Audio compression | Lossy (AAC, typically 128–256 kbps) | Uncompressed (PCM, lossless) |
| Audio quality | Good (perceptually transparent at high bitrates) | Perfect (bit-for-bit original) |
| File size (4 min stereo) | ~4 MB (audio only) / 30–100 MB (with video) | ~40 MB |
| Contains video | Yes (H.264, H.265) | No (audio only) |
| DAW support | Limited (must extract audio first) | Universal (native in all DAWs) |
| Editing suitability | Poor (compressed audio degrades on re-encode) | Excellent (no generation loss) |
| Sample rate / bit depth | Varies (AAC profile dependent) | Up to 192 kHz / 32-bit |
| Metadata support | Extensive (video, chapters, subtitles) | Basic (title, artist, album) |
| Best for | Video playback, streaming, sharing | Audio editing, production, archival |
Why Extract Audio as WAV?
Music production & sampling
When you sample audio from a video — a vocal phrase, a drum loop, an instrument riff — you need it in an uncompressed format that won't introduce artifacts during further processing. WAV gives you the raw audio data to slice, pitch-shift, time-stretch, and layer without compression degradation. Every DAW imports WAV natively.
Podcasting & voice-over
Extracting interview audio or voice recordings from video to WAV preserves full vocal clarity for editing. WAV files handle noise removal, EQ, compression, and normalization better than compressed formats because there are no pre-existing compression artifacts to amplify. Edit in WAV, then export to MP3 or AAC for distribution.
Archival & preservation
If you have important recordings in MP4 format — lectures, concerts, interviews, family videos — extracting the audio to WAV creates a lossless archival copy. Unlike AAC or MP3, WAV files can be stored indefinitely and re-encoded to any future format without accumulated quality loss from multiple compressions.
Further editing & transcription
Audio editing software (Audacity, Adobe Audition, iZotope RX) works best with uncompressed WAV files. Every edit, filter, and effect applied to a compressed format risks introducing additional artifacts. Starting from WAV ensures the cleanest possible result. WAV is also the preferred input format for speech-to-text transcription services.