Convert MP4 to MP3

Extract audio from MP4 in seconds

An MP4 file holds both a video track and an audio track. Very often the sound is the part you want: a song from a music video, a talk or lecture you want to listen to on a walk, a podcast that was recorded on camera, a voice memo filmed on your phone, or a sound effect for an edit. This MP4 to MP3 converter takes the audio track out of the MP4 and saves it as an MP3, the audio format that plays on every phone, car stereo, speaker and app. The video part is simply dropped, so the result is a fraction of the size.

Pick your MP3 quality

Before converting you can choose the bitrate of the MP3. Higher numbers keep more detail and make bigger files:

• 128 kbps: about 1 MB per minute. Plenty for speech, lectures, meetings and audiobooks.
• 192 kbps: about 1.4 MB per minute. The default, and a good choice for most music.
• 256 kbps: about 1.9 MB per minute. Very close to the original for almost all listeners.
• 320 kbps: about 2.4 MB per minute. The highest MP3 quality.

Choosing a bitrate higher than the audio in your MP4 will not make it sound better. Phone videos and most online videos carry AAC audio at 128 to 256 kbps, so 192 or 256 kbps MP3 is usually the sweet spot.

Convert MP4 to MP3 without uploading

Typical MP4 to MP3 sites ask you to upload the whole video first. Videos are big, so that can take minutes, and your file is stored on a server you know nothing about. VideoToolsFlow does the whole job in your browser. The audio is decoded and encoded to MP3 on your own device using the browser’s built-in media engine, and the MP3 is saved straight to your downloads. Nothing is uploaded, which makes it faster for large videos and safe for private recordings like family videos, interviews and meetings. It is free, with no sign-up needed, no limit on file count and no watermark or tag added to the audio.

How to convert MP4 to MP3

1. Drop your .mp4 file on the box above, or tap to choose it. You can also pick an MOV, MKV or WebM video, or an audio file.
2. Choose the MP3 bitrate, or keep the default 192 kbps.
3. Press Convert and download the MP3. It keeps the name of your video with a .mp3 extension.

Most videos are done in a few seconds, because only the audio track needs to be processed. It works on Windows, Mac, Chromebook, Android and iPhone in any modern browser, with nothing to install.

Only need part of the audio?

Convert the full MP4 first, then open the MP3 in the audio cutter to keep just the part you want, with optional fade in and fade out. To turn a clip into a ringtone for iPhone or Android, use the ringtone maker. If the audio is too quiet, the volume booster can make it louder without crackling.

MP4 to MP3 on iPhone and Android

Phones record video as MP4 or MOV. To get the sound on your phone, open this page in Safari or Chrome, tap the box and choose the video from your photos or files. On iPhone the MP3 is saved to the Files app, in Downloads. On Android it goes to your Downloads folder, where music apps can find it. Long 4K videos are large, so if your phone struggles, convert them on a computer instead.

Is it legal to convert MP4 to MP3?

Converting your own videos, or videos you have the rights to use, is fine. For music and videos made by others, check the license or terms before you keep or share the audio. This tool only works with files that are already on your device. It does not download anything from YouTube or other websites.

More ways to get audio from video

For other video formats, the video to MP3 converter covers MOV, MKV, WebM and AVI. If you need lossless audio for editing, convert to WAV with the audio converter. Going the other way, MP3 to MP4 turns a song into a video with a picture for YouTube.