WebM to MP3 Converter

Runs in your browser — your files are never uploaded.

Pull the audio out of a WebM file and save it as MP3. WebM downloaded from the web frequently holds Opus or Vorbis audio, which most players and car stereos will not touch — MP3 goes everywhere. Audio-only WebM files, which some sites serve for streams, work here too.

OptionsBitrate: Default — best quality for size

How to convert WebM to MP3

  1. 1

    Drop your .webm file onto the box, or click to choose one.

  2. 2

    Pick a bitrate, or leave the default for the best quality-to-size balance.

  3. 3

    Click “Download” to save the .mp3 file.

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Frequently asked questions

Does this keep the video?+

No — this extracts the audio track only and discards the picture. That is the point: the result is an audio file you can play anywhere.

Will converting Opus to MP3 lose quality?+

Slightly, since both are lossy and re-encoding compounds their losses. It is not usually audible at the default bitrate. There is no way to avoid it — the formats are not compatible, so the audio has to be decoded and re-encoded.

My WebM has no audio track.+

Then there is nothing to extract, and the conversion fails. Some WebM files are video-only by design, particularly the separate streams sites use for adaptive playback.