Convert Always

Runs on your device

MP4 to WAV converter

Need WAV instead of MP4? Add the file below and the converter handles the rest — batch conversion included, no account and no watermark.

Drop files here

Up to 20 files, 100.0 MB each. Conversion happens on your device — nothing is uploaded.

What is MP4?

MP4 is the universal video container, almost always carrying H.264 video with AAC audio. If a device plays video at all, it plays MP4.

Standardised by MPEG in 2001, based on Apple's QuickTime container.

  • The most compatible video format in existence
  • Hardware-accelerated decoding on virtually every chip
  • Streams progressively, so playback starts before the download finishes

What is WAV?

WAV stores uncompressed PCM audio — the raw digital waveform exactly as it was captured or rendered.

Defined by Microsoft and IBM in 1991.

  • Bit-perfect, lossless quality with zero encoding artefacts
  • The standard interchange format for studios, editing and mastering
  • Instant to decode, with no CPU cost during playback

Why convert MP4 to WAV?

  • WAV is the better fit for recording, editing and mastering before a final compressed export, while MP4 is built for sharing, uploading and playing video anywhere.
  • It sidesteps the main drawback of MP4: h.264 is less efficient than modern AV1 or HEVC.
  • You gain bit-perfect, lossless quality with zero encoding artefacts.
  • Compatibility improves where it counts: Every DAW, editor, operating system and browser.

Quality and file size after conversion

Expect the WAV file to be considerably larger. WAV stores everything it is given, so it faithfully preserves the picture MP4 already produced — including any compression artefacts baked in earlier. Converting back and forth cannot restore detail that MP4 discarded.

Compatibility

MP4 opens in Every browser, phone, smart TV, console and editor. WAV opens in Every DAW, editor, operating system and browser.

If the file has to work for someone else, choose the format their software already understands rather than the one with the best specification.

Limitations to know about

  • Extra tracks, chapters and subtitles inside the MP4 file are not carried into the WAV output.
  • Roughly 10 MB per minute of stereo CD-quality audio
  • Weak metadata and tagging support

When to keep MP4 instead

MP4 is still the right choice for sharing, uploading and playing video anywhere. Keep the original alongside the converted copy whenever you might need to re-export at a different size or quality — conversion is quick, but recovering discarded detail is impossible.

How to convert MP4 to WAV

  1. 1

    Drag your MP4 file onto the drop zone above, or click to browse. Up to 20 files can be queued at once.

  2. 2

    WAV is already selected as the output format — change it in the dropdown if you need something else.

  3. 3

    Press Convert and watch the per-file progress bar.

  4. 4

    Download the WAV result, or grab everything as a single ZIP when you converted a batch.

Frequently asked questions

Is this MP4 to WAV converter free?

Yes. Every conversion on Convert Always is free, with no account, no watermark and no daily download cap. The site is funded by advertising rather than subscriptions.

Are my MP4 files uploaded to a server?

No. MP4 to WAV runs entirely inside your browser using WebAssembly, so the file never leaves your device. You can even disconnect from the internet after the page loads.

Will converting to WAV reduce the quality?

Expect the WAV file to be considerably larger. WAV stores everything it is given, so it faithfully preserves the picture MP4 already produced — including any compression artefacts baked in earlier. Converting back and forth cannot restore detail that MP4 discarded.

Can I convert several MP4 files at once?

Yes. Add up to 20 files to the queue, convert them in one pass and download the results individually or bundled into a single ZIP archive.

What is the maximum MP4 file size?

Files up to 100 MB each are accepted. Browser-side conversions are limited mainly by your device's memory, so very large video files convert faster on a desktop than on a phone.

Does it work on mobile?

Yes. The converter is built mobile-first and works in Safari and Chrome on phones and tablets. Heavy media conversions are slower on mobile hardware but still run locally.

Related conversions

See every video conversion we support.

Your recent conversions

Stored in this browser only, never on our servers.

No conversions yet

Your conversion history is stored privately in this browser — never on a server.