Extract Audio From Video

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Drop a video here, or click to choose

MP4, MOV, WebM, MKV and more — the file stays on your device

This is a free video to MP3 converter that works on the video files already sitting on your own device. Open a recorded lecture, a meeting recording, an interview, a rehearsal you filmed or any other clip, and the tool separates the sound from the picture and hands you a plain audio file. Everything happens inside the browser: the video is read straight from your disk, decoded locally, and the audio is encoded on your own machine using a WebAssembly build of the LAME encoder. Nothing is uploaded — which matters enormously for meeting recordings, interviews and other material you simply cannot hand to someone else's server. Choose MP3 for a small file that plays on any phone, laptop or car stereo, or WAV when you need untouched PCM for further editing. The Voice preset encodes speech at exactly half the size of the Standard setting, so a two-hour lecture ends up small enough to carry around without a second thought.

How to convert a video to MP3

  1. 1

    Open your video file

    Drag a video into the box or click to pick one from your device. MP4, MOV, WebM and MKV all work, and the file is read locally — it is never sent anywhere.

  2. 2

    Pick a format and quality

    Choose MP3 for everyday listening or WAV for uncompressed audio. With MP3, take Standard for music or Voice for talks and meetings at half the file size.

  3. 3

    Extract and save

    Click “Extract audio” and follow the progress bar. When it finishes, play the result right on the page to check it, then download the MP3 or WAV.

Highlights

Nothing leaves your device

Decoding and encoding both run in your browser. Confidential meeting recordings and interviews stay on your own machine, and the tool keeps working even if you go offline mid-way.

MP3 and WAV output

MP3 for a compact file that plays anywhere, WAV for untouched 16-bit PCM when the audio is going into an editor afterwards.

A preset built for speech

The Voice preset encodes at 96 kbps in mono, halving the size of a lecture or meeting recording while every word stays perfectly clear.

Reads common video formats

MP4, MOV, WebM, MKV, M4V and more are parsed directly by the tool, including some files a browser refuses to play back.

Free, no watermark, no sign-up

No account, no credits, no daily cap and no audio stamp over your recording. Convert as many of your own files as you like.

Real progress, and a listen before you save

A genuine progress bar tracks the conversion, the output size is estimated up front, and the finished audio can be played in the page before you download it.

Common uses

Lectures and study material

Turn a recorded class into an audio file you can listen to while walking or commuting. The Voice preset keeps a two-hour lecture small enough to carry on a phone.

Meeting recordings

Pull the audio out of a recorded meeting for note-taking or transcription, without handing a confidential discussion to an online service you do not control.

Interviews and research

Journalists and researchers can strip the audio from filmed interviews and archive it, with the source material staying private from beginning to end.

Music and sound from your own footage

Lift the soundtrack from a rehearsal, a performance you filmed or a clip you shot yourself, and keep it as a standalone audio file.

FAQ

Is my video uploaded to a server?

No. The file is read from your disk, decoded and re-encoded entirely inside your browser, and the result is handed straight back to you. Nothing is transmitted at any point, so even sensitive meeting or interview recordings never leave your own machine — and the tool keeps working on an unreliable connection, or none at all.

Which video files can I use?

Any video file stored on your own device: MP4, MOV, WebM, MKV, M4V and similar containers are all read directly. Because the container is parsed by the tool itself rather than by the browser's media player, some files that will not play back in a browser tab can still have their audio extracted successfully.

Should I choose MP3 or WAV?

MP3 for almost every purpose — it is compressed, plays on any phone, laptop or car stereo, and is far smaller. Choose WAV when the audio is going into an editor and you want uncompressed 16-bit PCM with no generation loss. Expect WAV to be roughly 3.7 times the size of a 192 kbps MP3 for a mono source, and about 7.3 times for a stereo one.

What is the difference between the Standard and Voice presets?

Standard encodes at 192 kbps and stays in stereo when the source is stereo, which suits music and anything where room atmosphere matters. Voice encodes at 96 kbps in mono, producing a file exactly half the size — ideal for lectures, interviews and meetings, where only the speech carries information. MP3 uses a constant bitrate, so the bitrate alone decides the file size; the mono setting does not shrink it further, it simply spends every bit on the one channel that matters instead of two identical ones.

Why does it say my file has no audio track?

Because the video genuinely contains only a picture. Screen recordings made with the microphone disabled, silent camera clips and some exported animations carry no audio stream at all, so there is nothing to pull out. Open the file in a media player to confirm before trying again.

How long a video can I process?

Long recordings are fine — a lecture of several hours is well within reach as an MP3. The real limit is memory rather than time: the finished audio has to be assembled as a single block inside the browser tab, so the tool estimates the output size before it starts and warns you when a setting would be too large. WAV hits that ceiling far sooner than MP3, because PCM is uncompressed. The size of the video itself does not matter, only the length of its audio: a huge 4K file with two minutes of sound converts as easily as a small one.

Does the audio quality drop compared with the original?

MP3 is a lossy format, so re-encoding does cost a little. At 192 kbps the difference is inaudible in ordinary listening, and at 96 kbps mono speech stays completely clear. If you want no loss at all, choose WAV, which writes the decoded samples out as uncompressed PCM. The first time you export an MP3, the encoder itself (about 311 KB) is fetched once — every export after that starts instantly.

Get the audio out of your video

Free, private and entirely in your browser. Open a file, pick MP3 or WAV, and save the audio in seconds.

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