Extract Audio from Video
Pull the sound out of any video and save it as an MP3 — the lecture from a recorded class, the song from a wedding video, the interview audio you need for transcription, the track under a downloaded clip. Every format the browser can read works: MP4, MOV, WebM, MKV. Extraction runs completely on your device; the video itself is untouched and never uploaded.
- No upload — files stay on your device
- Works offline once loaded
- Free forever, no signup, no watermark
Preparing Extract Audio from Video for you…
Loading the tool into your browser. Nothing is uploaded — the work happens on your device.
- File {{ sourceSizeLabel }}
- Duration {{ durationLabel }}
- Audio track {{ audioCodecLabel }}
This file is over 500 MB. It will still work — audio extraction only reads the audio track — but give it a moment.
Encoding MP3 at {{ kbps }} kbps… {{ progress }}%
- Original video {{ sourceSizeLabel }}
- MP3 {{ resultSizeLabel }}
- Length {{ durationLabel }}
How to use this tool
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Drop any video file
MP4, MOV, WebM or MKV — the tool shows the audio track it found (codec and length) before doing anything.
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Pick the MP3 quality
For speech — lectures, interviews, voice notes — 128 kbps keeps files small. For music, go 192 or 320 kbps.
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Extract and save
Listen to the extracted audio right on the page, then download the MP3. Your original video file is not modified in any way.
Questions people ask
How do I extract audio from a video?
Drop the video here, choose a bitrate, and hit Extract MP3. Only the audio track is decoded — the picture is skipped entirely — so even long videos finish quickly.
Does extracting the audio change my video file?
No. Your video is only read, never written — you get a brand-new MP3 file alongside your untouched original. If you want the opposite (keep the video, drop the sound), use our Remove Audio from Video tool.
What video formats can I extract audio from?
MP4, MOV (iPhone), WebM (screen recordings, saved clips) and MKV (OBS, downloads). The audio inside — AAC, Opus, MP3, Vorbis — is decoded and re-encoded to a standard MP3 that plays anywhere.
Can I extract a song from a video without losing quality?
Choose 320 kbps for the least possible loss. Bear in mind the audio inside a video is already compressed, so the MP3 can only be as good as what's in the file — 320 kbps preserves essentially all of it.
Is the video uploaded anywhere?
No — the whole job runs in your browser. That matters for exactly the kind of thing people extract audio from: lectures, meetings, personal recordings. None of it touches a server.
Why do I need Chrome or Edge for this?
The MP3 encoding uses the encoder built into the browser (WebCodecs), which Chrome and Edge ship from version 130. Browsers without it get an honest message up front instead of a broken download.
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- WebM to MP4 Converter Convert WebM to MP4 free in your browser — screen recordings and saved clips become MP4s that pl...
- MKV to MP4 Converter Convert MKV to MP4 free in your browser — OBS recordings and downloads usually convert instantly...
Free because it costs us nothing to run: your browser does the work, not our servers. Made by Dynamb Technologies — we build software for businesses.