Extract audio from video files and save it as MP3. Convert MP4, MOV, WebM, MKV and AVI to MP3 locally in your browser — private, free, no upload.
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MP4 · MOV · WebM · MKV · AVI
Select a video file and choose MP3 as the output format. LessMB extracts the audio track and encodes it as a standard MP3 file that plays everywhere.
Works with MP4, MOV, WebM, MKV and AVI sources. The audio track is transcoded to MP3 regardless of the source container or codec.
Audio extraction runs entirely in your browser. Interviews, lectures and personal recordings are never uploaded to a server.
Save audio from recorded lectures, webinars and video podcasts as portable MP3 files.
Lectures and podcastsExtract audio tracks from music videos and live performances for offline listening.
Music from videosPull voice audio from screen recordings and video messages for easier sharing.
Voice memosRespostas para as perguntas mais comuns sobre esta ferramenta, fluxos compatíveis e processamento local.
Yes. LessMB extracts MP3 audio from video files for free, directly in your browser.
MP4, MOV, WebM, MKV and AVI are supported as input formats.
The audio is transcoded to MP3 at a practical bitrate. For most speech and music content the quality is very good.