MP3 to MP4

Convert MP3 to MP4 online and free

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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!

Tillie

I 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.

PDinSF

Used 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 Wierzbicka

I'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.

JH

I have been so thankful for Zamzar’s support from the beginning of the Pandemic to the present day. Their service is first rate & their helpfulness is always the best it could be.

Mary

A very useful and professional site. The service is easy to use and the administrators are helpful and courteous.

David Shelton

I 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 Bee

Great 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 Calis

I 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 Herman

Fantastic 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 Boyette

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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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?

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Fully 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 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.

Zamzar has been in existence now for over ten years, and so we’ve been able to improve and refine our file conversions to ensure they

High Quality

Zamzar has been in existence now for over ten years, and so we’ve been able to improve and refine our file conversions to ensure they're of the highest standard.

All of our hardware runs in world-class, highly secure data centres utilizing state-of-the-art electronic surveillance and multi-factor access control systems.

Secure

All of our hardware runs in world-class, highly secure data centres utilizing state-of-the-art electronic surveillance and multi-factor access control systems.

We don

No Account Needed

We don't require an email address, a name, or a phone number. We just need your file and what you want it converted into.

We know you might need to convert files while on the move, which is why our conversion tool works on both phone and tablet.

Any Device

We know you might need to convert files while on the move, which is why our conversion tool works on both phone and tablet.

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.

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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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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How to convert a MP3 to a MP4 file?

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

To convert MP3 files to MP4 you will need to use either a video-editing software, such as Wondershare Filmora or Movavi, or an online conversion tool like Zamzar. It’s easy to use the free converter on Zamzar’s website and you don’t need to install anything extra to your device. Simply upload your MP3 files, click to convert them to MP4 and then download your audio tracks as video files.

Alternatively, you could convert your file with Wondershare Filmora by installing their software, importing your music file, dragging the file to the music timeline of a project, and then exporting the project as an MP4 file. The file will have a watermark, though, unless you are using their paid service.

Zamzar’s website has one of the best free MP3 to MP4 converters. There are just three steps to the Zamzar online conversion tool – upload one or more files, select MP4 as the format you’d like to convert them to, and then download your new files.

There are other tools you can use, but some of these add a watermark to your file if you’re using their free service. They may also require you to download and install extra software on your computer.

To convert MP3 to video, you will need to use software or a file converter like Zamzar as this isn’t a function that’s currently available on most operating systems.

However, it’s really quick to convert MP3 to MP4 video without downloading any extra software. Just upload your MP3 file to the three-step conversion tool on Zamzar’s website, select MP4, then click ‘Convert Now’ – you’ll then be able to download your video file.

You can also convert your MP3 file to video using a downloaded video-editing tool like Wondershare Filmora, but you may need to pay for tools like these.

You can convert your audio files to MP4 video using video-editing software, such as Movavi, or using an online conversion tool like Zamzar. With video-editing software, you can usually import your audio file into a new project, and then export the project as an MP4 file. Bear in mind that some of these tools will watermark the file unless you are using their paid service.

The advantage of using Zamzar’s conversion tool instead, is that you can use the free online version without installing anything else on your device. Simply, upload your audio tracks, convert them to MP4 and then download your video files.

MP3 is the most common format for digital music, while MP4 is the equivalent for video files. It’s easy to convert audio to video using online conversion tools like Zamzar. Simply, upload your MP3 files to Zamzar’s three-step converter, select MP4, and then ‘Convert Now’. You can then download your MP4 video files.

It’s also possible to change an MP3 file to MP4 using video-editing software, such as Wondershare Filmora or VEED, although you will often have to install the software on your computer or pay to remove the watermark on files.