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Files stay on your device

Convert Video to MP3 Online

Different videos.
One familiar MP3.

Have an MP4, MOV or WebM? Turn its audio into an MP3 with one local workflow.

No media uploads Free, no signup
MP4 · MOV · WebMMP3 audio
See what you can make
01 START WITH YOUR FILE
VIDEOMP3
Local conversion
idle

Your media stays on your device.

Private by default

192 kbps by defaultOne video at a time · Optional trimming

Your file. Your device.

The selected video stays on this device. Its bytes are processed inside the browser and are not sent to an upload or conversion API.

LOCAL PROCESSING

A SIMPLE WORKFLOW

How to convert a video to MP3

Choose. Convert. Keep.

  1. 01

    Choose a supported video

    Select one compatible MP4, QuickTime MOV or WebM file from your device.

  2. 02

    Set the MP3 quality

    Choose 128, 192, 256 or 320 kbps. Advanced settings includes sample rate, channels and optional start/end times for a single audio segment when the video length is available.

  3. 03

    Convert and download

    Run the conversion locally, preview the MP3 and save it from your browser.

BUILT AROUND YOUR AUDIO

Why convert video to MP3 here?

Turn a compatible MP4, MOV or WebM video into an MP3 on your device. Choose the audio settings, convert in this browser and download without an account.

JUST THE SOUND.
ALL YOURS.
01

One tool for tested video formats

Use the same workflow for the verified MP4, MOV and WebM combinations instead of switching pages.

02

Local and account-free

Media stays in the browser and no registration, login or cloud conversion job is required.

03

Portable MP3 output

Create an MP3 with a chosen bitrate for audio players and workflows that do not need the video track.

KNOW YOUR FORMAT

Verified video support

  • MP4 container with H.264 video and AAC audio.
  • QuickTime MOV container with H.264 video and AAC audio.
  • WebM container with VP9 video and Opus audio.
  • Output: MP3 at 128, 192, 256 or 320 kbps.
All supported formats
INPUT
MP4 · MOV · WebM
OUTPUT
MP3 audio
STARTING POINT
192 kbps by defaultOne video at a time · Optional trimming
INPUT SOFT LIMIT
500 MiB desktop200 MiB on mobile. Available memory may be lower.

LESS VIDEO. MORE POSSIBILITY.

What do you need
from your video?

Choose a local MP4, MOV or WebM, one at a time. Leave with an MP3 that fits the moment.

WHAT DO YOU WANT TO DO?

Your file.
Your device. Always.

WORKFLOW PREVIEWMADE FOR YOUR NEXT STEP
THE VIDEOMP4
JUST
THE
AUDIO.
MP3 / YOUR NEXT LISTEN
weekend-workshop.mp3MP3

THE RESULT

Turn a workshop into a listening session

Revisit the spoken parts of a workshop you recorded, with an audio copy for your everyday player.

Settings & steps
  • 192 kbps
  • Sample rate: Auto

Select the MP4 and keep the default settings. Convert, listen to the preview and download before closing the tab.

Long recordings can exceed available browser memory.

Tested input: H.264 video + AAC audio

WORKFLOW PREVIEWMADE FOR YOUR NEXT STEP
THE VIDEOMOV
JUST
THE
AUDIO.
MP3 / YOUR NEXT LISTEN
family-story.mp3MP3

THE RESULT

Keep a personal video as a voice keepsake

Save the spoken story from a compatible family MOV as an audio-only keepsake, processed on your own device.

Settings & steps
  • 192 kbps
  • Channels: Auto

Save the full MOV locally, select it and convert. Preview the story, download the MP3 and keep your original video too.

Conversion preserves neither the video nor every source detail.

Tested input: H.264 video + AAC audio

WORKFLOW PREVIEWMADE FOR YOUR NEXT STEP
THE VIDEOWEBM
JUST
THE
AUDIO.
MP3 / YOUR NEXT LISTEN
weekly-notes.mp3MP3

THE RESULT

Make your screen-recorded notes portable

Move from a browser recording to an MP3 voice note that does not need a WebM-compatible video player.

Settings & steps
  • 128 kbps
  • Channels: Mono

Select your WebM and choose 128 kbps with Mono channels for spoken notes. Convert, preview and download the file.

Check that your destination app accepts MP3 attachments.

Tested input: VP9 video + Opus audio

Your file. Three steps. Done.

Choose a video. Convert. Download your audio.

Illustrative workflows. Use a local file you own or have permission to process.

UNDER THE EXTENSION

Containers and codecs are different

The extension names the container

MP4, MOV and WebM are containers. Each can hold different video and audio codecs, so an accepted extension alone cannot guarantee conversion.

Support follows tested combinations

This page is verified with H.264 and AAC in MP4 or MOV, plus VP9 and Opus in WebM. It does not support every video codec.

MAKE AN INFORMED CHOICE

Choosing MP3 quality

192 kbps is the balanced default. 128 kbps is smaller, while 256 and 320 kbps create larger outputs.

Converting AAC or Opus to MP3 is lossy. A higher bitrate cannot restore detail already missing from the source.

Auto sample rate and channels avoid forcing another layout unless a playback target requires it.

BEFORE YOU START

Video to MP3 limits

  • Only MP4, MOV and WebM containers are accepted, and the page does not support every codec they can contain.
  • A video without an audio track cannot produce an MP3.
  • The soft limit is 500 MiB on desktop and 200 MiB on mobile; available browser memory may be lower.
  • Conversion speed varies by file, device and browser. Keep the page open while it runs.

THE RIGHT TOOL FOR THE JOB

Find your next audio tool.

MP3

MP4 to MP3

An audio copy for everyday listening.

MP3

MOV to MP3

Audio from your QuickTime or camera recording.

MP3

WebM to MP3

A listening copy of your browser recording.

MP3 or original

Extract Audio from Video

Choose MP3 or copy the compatible original track.

A FEW GOOD ANSWERS

Before you
press convert.

Have another question?

Get in touch
Is my video uploaded?

No. The selected video is processed locally in your browser and is not sent to our servers.

Which video formats have been verified?

We verify MP4 and MOV with H.264 video and AAC audio, and WebM with VP9 video and Opus audio. Other codec combinations may fail.

Does the MP3 keep the video?

No. MP3 contains audio only. The converter selects the first audio track and leaves the video track out of the result.

Will 320 kbps improve a low-quality source?

No. It can reduce additional MP3 loss, but it cannot recreate audio detail absent from the original video.

MP4ToMP3.tools

Sound, simply.

Supported video-to-audio conversion runs locally in your browser. Your media is not uploaded to us.

support@mp4tomp3.tools

Converters

  • MP4 to MP3
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  • MP4 to WAV
  • MP4 to M4A

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  • Extract without re-encoding

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