Which formats does it take?

Whatever your browser plays: MP4 and M4V, WebM, MOV, and the common audio formats too if you drop those in. The measured exception is AVI — a format old enough that no modern browser ships a decoder for it. For AVI, a desktop tool like VLC or HandBrake is the honest recommendation.

Does the video quality matter for the audio?

No. The picture and the sound are separate tracks in the same box; a blurry 240p video can carry pristine audio and a 4K one can carry a phone microphone. What you get out is whatever was in the audio track, encoded to MP3 at 320 kbps.

Can I trim the audio, or take just a section?

Not here — this page does one thing whole. Convert first, then trim the MP3 in any editor; or if what you want is the speech as text rather than sound, the transcriber on this site takes video directly.

Why is the MP3 shorter than the video?

It should never be. If it is, the video's audio track itself is shorter than the picture — some screen recorders stop the microphone before the screen. The audio track's own length is what you get — give or take the few milliseconds of padding every MP3 encoder adds.

Is it free, and is my file uploaded?

Free, with no account and no cap on how many files. Each file has a length limit, though: about an hour and a half in Chrome and Edge, and three hours in Firefox and Safari, which cut anything longer at that point. The conversion runs in your browser. Your files are never uploaded.

How can I check that my video is not being uploaded?

Open your browser's developer tools, switch to the Network tab, and extract the audio with it open. You will see no request carrying your video and no model download, because there is no model — the decoding is done by the same video decoder your browser uses to play the file. Then sort that list by size: the largest thing the page sends is a few kilobytes of analytics, nowhere near the size of your video. This page loads analytics and advertising like most websites do, which is why the claim is scoped precisely: your files are never uploaded.

Video to MP3

If your browser can play a video, it can extract its audio — the decoder is the same one. Drop in an MP4, a WebM screen recording, a MOV off an iPhone, and the sound comes back as an MP3. The one exception is AVI, which no browser reads. This page spots an AVI from its first bytes and says so on its row, without trying to decode it.

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Your videos
Drop your videos here
MP4WebMMOVMP3
Your files are never uploaded.
What you want back
Your files

How to extract audio from a video

Add your videos

MP4, WebM, MOV — mixed is fine. They are decoded by your browser and never uploaded.
Pick MP3 or WAV

MP3 at 320 kbps to listen; WAV if the audio is going into an editor next.
Save the audio

File by file, or all of it as a zip.

What you get

One page for every container

MP4, M4V, WebM, MOV — the browser's decoder does not care which wrapper the sound arrived in, so neither does this page. You do not need to know what a container format is to leave with your audio.

A failed file says why

AVI decodes in no browser, and neither does a copy-protected film. A file like that fails on its own row with the likely reason, and the rest of the batch carries on.

Batch a folder of clips

Thirty lecture recordings convert one after another, each named after its video, and download as a single zip. A failure on one file is reported on that file and does not take the rest down.

Your videos are never uploaded

A screen recording of a work call is not something to hand to a converter site's server. Here there is no server in the path — the decode happens in the page, and you can watch the network tab to confirm it.

Questions about video and audio

Which formats does it take?: Whatever your browser plays: MP4 and M4V, WebM, MOV, and the common audio formats too if you drop those in. The measured exception is AVI — a format old enough that no modern browser ships a decoder for it. For AVI, a desktop tool like VLC or HandBrake is the honest recommendation.
Does the video quality matter for the audio?: No. The picture and the sound are separate tracks in the same box; a blurry 240p video can carry pristine audio and a 4K one can carry a phone microphone. What you get out is whatever was in the audio track, encoded to MP3 at 320 kbps.
Can I trim the audio, or take just a section?: Not here — this page does one thing whole. Convert first, then trim the MP3 in any editor; or if what you want is the speech as text rather than sound, the transcriber on this site takes video directly.
Why is the MP3 shorter than the video?: It should never be. If it is, the video's audio track itself is shorter than the picture — some screen recorders stop the microphone before the screen. The audio track's own length is what you get — give or take the few milliseconds of padding every MP3 encoder adds.
Is it free, and is my file uploaded?: Free, with no account and no cap on how many files. Each file has a length limit, though: about an hour and a half in Chrome and Edge, and three hours in Firefox and Safari, which cut anything longer at that point. The conversion runs in your browser. Your files are never uploaded.
How can I check that my video is not being uploaded?: Open your browser's developer tools, switch to the Network tab, and extract the audio with it open. You will see no request carrying your video and no model download, because there is no model — the decoding is done by the same video decoder your browser uses to play the file. Then sort that list by size: the largest thing the page sends is a few kilobytes of analytics, nowhere near the size of your video. This page loads analytics and advertising like most websites do, which is why the claim is scoped precisely: your files are never uploaded.

Need the words rather than the sound? The transcriber turns recordings into text, on this same no-upload model. Cleaning up a noisy recording first? Remove the background noise. Or see all the audio tools.

Your videos

What you want back

Your files