MP4 to MP3
Convert MP4 to MP3 online and free
Step 1 - Select a file(s) to convert
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Max. file size 50MB (want more?)
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Step 2 - Convert your files to
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4.5 out of 5 based on 223 reviews
I tried it and immediately fell in love! It was so easy to use! After a couple conversions I bought the guys a cup of coffee. A couple more and decided this was too good to abuse! I joined! My life is so much easier!
TillieI had a huge, problematic file to convert that couldn't go through the usual automated conversion process. The Zamzar team responded quickly to my request for help, and they took the extra steps needed to do it manually.
PDinSFUsed it for over a year to convert my bank statements to csv files. Great quick app, increased my productivity a lot. Also, amazing support - always helped me quickly!
Agata WierzbickaI've used this product for years. And customer service is excellent. Just had an issue where I was charged and I didn't agree with the charge and they took care of it, even though they didn't have to.
JHA very useful and professional site. The service is easy to use and the administrators are helpful and courteous.
David SheltonIt’s my first time using it. I had some complications doing it. I’m not very good at this. But I wrote to the company and I had a lot of help. I’m satisfied with customer service and with the app.
Ana SuárezI use Zamar whenever I need to convert audio and video files from multiple submitters to 1 uniform file format for Audio and Video Editing. I can do multiple large files in a short amount of time.
Christopher BeeGreat for when you need a lot of conversions in a short time. You have directly access and can even put the subscription on for just a month.
Sabina CalisI feel like Zamzar is an active team member, especially for projects that I work on where I am the workhorse and it saves so much time and frustration. I am spoiled with Zamzar, because they have set the bar for file conversion and customer service very high.
Deborah HermanFantastic service! My mom's computer died and she has 1000+ Word Perfect files she wants to keep for some reason. Since Word Perfect is basically dead, I decided to convert all her files. Zamzar's converter was perfect.
Aron BoyetteTrusted 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.












Your files are in safe hands
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?
Get the AppFully integrated into your desktop
Convert over 150 different file formats
Convert documents, videos, audio files in one click
Need conversion functionality within your application?
Explore the APIOne 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.

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

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.

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.

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
An MP4, sometimes known as an MPEG4, is a multimedia file that is used to store video or audio data. MP4 files are typically smaller in size than other audio or video file types because MP4 files use a mix of compression technologies. Video and audio compression are usually handled by different codecs (audiovisual encoders). The video part is compressed with MPEG-4, a standard that was developed by Moving Picture Expert Group (MPEG), while the audio is typically compressed using AAC compression.
The explosion in popularity of the MP4 format is largely down to Apple and the iTunes Store, as it is the standard format for almost all of the media downloaded from the store. MP4 files are also typically seen when a video is downloaded from the internet.
MP4 files can normally be opened on your computer using Windows Media Player or QuickTime, and can be opened on mobile devices without the need to download any applications.
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MP3 Audio Format MP3 Converter
MP3 goes by the full name of MPEG Audio Layer-3 and is perhaps the most widely used audio file around today. MP3 is a file format developed by the Moving Pictures Expert Group (MPEG) which uses compression to produce smaller file sizes. The type of compression used means some data is lost, but typically audio playback quality is not obviously impacted, especially when recording files at higher bitrates. Other popular audio formats, such as WAV, can be up to 10 times the size of an equivalent MP3 file. Almost all applications are able to open MP3 files including Windows Media Player and iTunes on macOS. The MP3 file format famously exploded in popularity during the '90s and '00s as music moved online and become digitised.
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How to convert a MP4 to a MP3 file?
- 1. Choose the MP4 file that you want to convert.
- 2. Select MP3 as the the format you want to convert your MP4 file to.
- 3. Click "Convert" to convert your MP4 file.
Convert from MP4
Using Zamzar, it is possible to convert MP4 files to a variety of other formats:
MP4 to 3GP MP4 to 3G2 MP4 to AAC MP4 to AC3 MP4 to AVI MP4 to DVD MP4 to FLAC MP4 to FLV MP4 to GIF MP4 to IPAD MP4 to IPHONE MP4 to IPOD MP4 to MOV MP4 to MP3 MP4 to MPG MP4 to OGG MP4 to WAV MP4 to WEBM MP4 to WMV MP4 to YOUTUBEConvert to MP4
Using Zamzar, it is possible to convert a variety of other formats to MP4 files:
264 to MP4 3G2 to MP4 3GA to MP4 3GP to MP4 3GPP to MP4 AAC to MP4 AIFC to MP4 AIFF to MP4 AMR to MP4 APE to MP4 ASF to MP4 AVI to MP4 CAF to MP4 F4V to MP4 FLV to MP4 GIF to MP4 GVI to MP4 M2TS to MP4 M4A to MP4 M4B to MP4 M4R to MP4 MIDI to MP4 MKV to MP4 MOD to MP4 MOV to MP4 MP3 to MP4 MPG to MP4 MTS to MP4 OGA to MP4 OGG to MP4 RA to MP4 RAM to MP4 RM to MP4 RMVB to MP4 TS to MP4 VOB to MP4 WAV to MP4 WEBM to MP4 WMA to MP4 WMV to MP4Frequently 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.