MP4 to MP3

Convert MP4 to MP3 online and free

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Max. file size 50MB (want more?)

Trusted by employees at these brands

Employees of some of the world's most well-known brands rely on Zamzar to convert their files safely and efficiently, ensuring they have the formats they need for the job at hand. From global corporations and media companies, to respected educational establishments and newspaper publications, employees of these organisations trust Zamzar to provide the accurate and reliable conversion service they need.

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Zamzar has converted over 510 million files since 2006

For every 10,000 files converted on Zamzar, we'll plant a tree. By using Zamzar you are helping to make a difference to our planet

We're committed to regular charitable giving. Each month we donate at least 2% of our company profits to different charities

From your personal desktop to your business files, we've got you covered

We offer a range of tools, to help you convert your files in the most convenient way for you. As well as our online file conversion service, we also offer a desktop app for file conversions straight from your desktop, and an API for automated file conversions for developers. Which tool you use is up to you!

Want to convert files straight from your desktop?

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Convert over 150 different file formats

Convert documents, videos, audio files in one click

Need conversion functionality within your application?

Explore the API

One simple API to convert files

100s of formats for you to choose from

Documents, videos, audios, images & more...

Why choose Zamzar?

With Zamzar, file conversions are easy, reliable and convenient, so you can quickly convert your documents, images, videos, and more, to the formats you need. With faster downloads of converted files, and friendly and helpful support when you need it, you'll have everything you need to work with your files.

With over 1100 file-conversion types supported, you won

1100+ File-conversion Types Supported

With over 1100 file-conversion types supported, you won't need to go anywhere else to convert your files.

Zamzar has been around since 2006, and in that time we have worked day and night to make sure your files get converted as quickly as they possibly can.

Fast Downloads

Zamzar has been around since 2006, and in that time we have worked day and night to make sure your files get converted as quickly as they possibly can.

We have Twitter, Facebook and Instagram pages, where you can always ask us a question and our social media team will help you out.

Help is on Hand

We have Twitter, Facebook and Instagram pages, where you can always ask us a question and our social media team will help you out.

We operate with a dedicated support team to help you if you ever face an issue.

Highly Reliable

We operate with a dedicated support team to help you if you ever face an issue.

Tools to suit your file conversion and file compression needs

You'll find all the conversion and compression tools you need, all in one place, at Zamzar. With over 1100 file-conversion types supported, whether you need to convert videos, audio, documents or images, you'll easily find what you need and soon have your files in the formats and sizing that work for you.

MP4 Video Format

MP4 Converter

MP4, sometimes called MPEG4, is one of the most common video formats. MP4 was developed to be easily played and shared. It was originally developed by the Moving Picture Experts Group (MPEG) but has become an ISO standard, meaning that it’s now maintained by the International Organisation for Standardization. As MP4 is a standardised format, it will normally play easily on most devices and media players, including Windows Media Player, QuickTime, and VLC. MP4 is usually the preferred format for uploading videos to YouTube, Vimeo or other websites.

MP4 videos are made up of video and audio elements that are compressed separately. The video part is usually compressed with MPEG-4, and the audio is usually compressed using AAC, which is the audio format associated with iTunes. Because both file elements are compressed, MP4s normally have a smaller file size than many other video formats, but still maintain relatively high quality for sharing online.

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MP3 Audio Format

MP3 Converter

MP3 is the most common format for storing and playing digital music. It’s short for ‘MPEG-1 Audio Layer 3’, and it was developed in the early 1990s as a way of compressing audio to create smaller files that could be easily shared and stored without losing too much sound quality.

MP3 is a universal format maintained by the International Office for Standardization (ISO). MP3 tracks will play on almost any device and with most media players, including Windows Media Player and Apple Music. Digital music took off in the 1990s and 2000s, and many users used media players to ‘rip’ CDs, or download tracks from sites like Napster, turning MP3 into the most common audio format. Because MP3 uses ‘lossy’ compression that can’t be reversed, some music listeners prefer to use other formats such as FLAC, even if the file sizes are bigger.

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How to convert a MP4 to a MP3 file?

  1. 1. Choose the MP4 file that you want to convert.
  2. 2. Select MP3 as the the format you want to convert your MP4 file to.
  3. 3. Click "Convert" to convert your MP4 file.

Frequently asked questions

If you’ve got any questions about converting or compressing files with Zamzar, we’re happy to help! We’ve answered a few commonly-asked questions below, to get you started, and you can find out more information about file conversion and compression with Zamzar, in our Help centre.

You can open your MP4 file in most media players, including Windows Media Player, Apple QuickTime Player, VideoLAN VLC Media Player and MPlayer. If you’re struggling to open your MP4 file, you can simply use Zamzar’s converter tool to convert it to a different video format.

You can open your MP3 files using an application like Apple Music, Windows Media Player, VideoLAN VLC Media Player or MPlayer. Alternatively, you can easily convert your MP3 file to another file format using Zamzar’s online converter.

You can convert MP4 to MP3 on a Mac using Zamzar. Simply upload your MP4 file, select ‘MP3’ as the ‘Convert to’ option, and then click ‘Convert Now’. Your MP3 file will then be downloadable from the same page.

If you’d prefer to use an on-device application, you can use your Apple QuickTime Player and Apple Music applications together to do this. First, open the MP4 in QuickTime Player and export it as an ‘Audio Only’ file. This will give you an M4A file. Then add the M4A file into Apple Music, navigate to ‘Preferences’, select ‘Files’, then ‘Import Settings’, then choose ‘MP3 Encoder’ as the encoding format you’d like to convert your file to, and then click ‘OK’. Select your M4A file and go to ‘File’ > ‘Convert’ > ‘Create MP3 Version’. Your new MP3 file will then appear in your library.

You can convert MP4 to MP3 on Windows using the online conversion tool from Zamzar. Here you can easily convert your file in real-time without the need to download any software.

Alternatively, you can open Windows Movie Maker and upload your MP4 file by clicking ‘Add Video’. Once added, select ‘File’, then ‘Save Movie’, and then navigate to the bottom of the page where you can click the menu option ‘Audio Only’. You’ll be prompted for a file name for your new MP3 file, which you can then save and open as an MP3 file.

You can quickly convert your MP4 file on your computer using Zamzar’s easy 3-step online converter tool. Alternatively, you can download various software applications that you can use to convert your MP4 file, such as Apple QuickTime Player or Windows Movie Maker.