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Convert WebM to WAV

Browser recordings keep their sound as Opus inside WebM. Drop the file here and save a WAV that any audio tool can edit.

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Drop your video here

Choose your video

MP4, MOV, WebM or MKV. It opens right here, on your device.

  • Nothing uploaded
  • No sign-up
  • No watermark

Tested in the browser

BrowserResultWhat came out
Google Chrome 155ConvertedWAV: PCM sound
WebKit 27.2 (Safari’s engine)ConvertedWAV: PCM sound

On October 24, 2026, a 10-second 1280×720 WebM (VP9 video, Opus sound) went through this page’s button in each browser, and what came out was read back with ffprobe.

The test file carried a location tag; no converted copy kept it.

When to turn WebM into WAV

Many audio editors and transcription tools don’t read Opus or WebM at all, while every one of them reads WAV. Converting once saves fighting the import dialog.

Opus is decoded and written out as 16-bit WAV. It has to be a WebM with a picture: a sound-only WebM won’t open here.

WebM and WAV, in short

WebM
Google’s open web format, with VP8, VP9 or AV1 video and Opus or Vorbis sound. Browser screen recorders and many downloaded web videos come as WebM.
WAV
Uncompressed sound: every sample kept, nothing thrown away. Audio editors, transcription tools and music apps prefer it; the files are large.

How to convert

  1. Open the WebM

    Press the button and drop the file, or pick it from your files. It opens in this browser tab: nothing is uploaded, so there is no upload limit to hit.

  2. WAV is already chosen

    The save window opens set to it. Change the file name if you like; there is no quality to pick.

  3. Save

    The new file is written on your device and downloaded. Several files? Drop them together and they are converted one after another.

What changes, what stays

Picture
Left out: only the sound is saved.
Sound
The first sound track, at its own level, in stereo at most.
Quality
Uncompressed 16-bit sound at the video’s own sample rate: a minute of stereo at 48 kHz is about 11.5 MB.
Details about you
The file is written from scratch, so none of the original’s metadata comes along: no location, no camera or phone model.

Questions

Does this improve the sound?

No: the WAV holds what the Opus sound decodes to, nothing more. It only stops further loss while you edit.

Can Shycut transcribe it instead?

Yes: open the WebM in the editor and Shycut writes captions from the speech on your device, which you can save as an SRT file.

Will the WAV be stereo?

If the recording is. One or two channels stay as they are; more are saved as two.

Your video stays with you.

Open Shycut, drop the video in and export. Free, with no account, and your video never leaves your device.

Choose your video

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