Convert a WebM video to an MP3 audio file — perfect for grabbing audio from downloaded YouTube clips or screen recordings.
YouTube, web-based screen recorders, and many recorders save in WebM by default. If what you actually care about is the audio — the voiceover in a tutorial, a music cover, the dialogue from a lecture — you don't need the video track taking up space or bandwidth. Converting to MP3 strips it out and leaves you with a compact, universally-playable audio file.
The WebM's audio track (typically Opus or Vorbis) is decoded to raw PCM and re-encoded as MP3. Opus in particular is a very high-quality codec, so the MP3 output will sound excellent at moderate bitrates. Zero upload; everything happens in your browser.
WebM is Google's open container for the web, typically carrying VP9 or AV1 video and Opus or Vorbis audio. It plays natively in browsers but many desktop tools and devices prefer MP4.
MP3 is the most universally compatible lossy audio format — plays on every phone, car stereo, and audio player ever made.
Drag a WebM onto the converter above, or click the box to pick one from your device.
We've preselected MP3 as the output format. Change it from the dropdown if you want a different target.
Click Convert and wait for the progress bar to finish. Download the MP3 when it's ready.
Convert a WebM video (downloaded from YouTube, Twitter, or a web recorder) to MP4 — fast, in your browser, no upload.
Pull the audio out of any MP4 video and save it as an MP3 — free, private, runs in your browser.
Extract the audio from a QuickTime MOV and save it as an MP3 — in your browser, no upload needed.