Extract the audio from a video as MP3

Choose a video, pick a quality, and download its sound as an MP3. Your file never leaves your device.

Free, no sign upNothing is uploadedMP4, MOV and WEBM128 to 320 kbps

Quality

How it works

  1. Step 1

    Choose a video

    Any video you made or have the rights to, up to 250 MB and 10 minutes.

  2. Step 2

    Pick a quality

    192 kbps suits most audio; 128 kbps is enough for speech.

  3. Step 3

    Extract and download

    Listen to the MP3 on the page, then save it.

Which bitrate to choose

The first sound track in the video is converted. Converting to MP3 cannot add quality the video’s own sound did not have, so a higher bitrate than the source mostly makes a bigger file.

BitrateSize per minuteGood for
128 kbps0.94 MBSpeech, podcasts, voice notes
192 kbps1.41 MBMusic and mixed audio, a good default
320 kbps2.34 MBThe highest MP3 bitrate, for music you will edit

Private by design

The converter runs FFmpeg compiled to WebAssembly in your browser. Your file is read into memory on your device and the result is saved from there, so nothing is sent to Percify or anyone else. That is also why there is no queue, no account and no watermark.

Files up to 250 MB and 10 minutes work in the browser. For bigger files, the free FFmpeg command on this page does the same job on your computer.

Platform facts checked on 17 September 2026 against each platform's own help pages.

Use it from an AI assistant or a script

Every setting is a URL parameter, so an assistant can send a link with the options already chosen. The tool still runs on the person's own device.

ParameterValuesDefaultMeaning
bitrate128, 192, 320192MP3 bitrate in kbps.

Speech at 128 kbps

https://percify.io/tool/video-to-mp3?bitrate=128ffmpeg -i input.mp4 -map 0:a:0 -vn -c:a libmp3lame -b:a 128k output.mp3

Music at 320 kbps

https://percify.io/tool/video-to-mp3?bitrate=320ffmpeg -i input.mp4 -map 0:a:0 -vn -c:a libmp3lame -b:a 320k output.mp3

Every free tool and its parameters, as JSON: percify.io/tools.json

More free tools

Audio to video converter

Add your audio and, if you like, an image. Pick image, waveform or both and a shape, then download an MP4.

Mute video

Choose a video, press Remove sound, and download it silent. The picture is not changed.

Increase video volume

Choose a video, pick how much louder, and download it. Only the sound changes; the picture is copied as it is.

Turn the audio into a talking video

Pair a recording of your own voice with one photo and get a talking video, at 2 credits a second.

Make a talking video

Free to start · no credit card

Frequently asked questions

Everything you need to know before you start.

Choose the video, pick 128, 192 or 320 kbps, press Extract MP3, and download. The sound is converted on your device.

The converter tells you the video has no sound track instead of making an empty file.

It converts video files on your device. It does not download from websites; use it on videos you made or have the rights to.

No. It is processed on your device with FFmpeg running in WebAssembly and saved from there. Only the converter itself is downloaded, once, and checked against a fingerprint before it runs.

Yes. The quality is a URL parameter, for example /tool/video-to-mp3?bitrate=320, and /tools.json lists every tool and its parameters.