Convert MP3 to MP4 in bulk.
Large MP3 files are supported.

You can convert MP3 Learn more about MP3 files to

Video
Audio


How to convert MP3 to MP4?

You can convert MP3 to MP4 with MConverter in three easy steps:
  1. Choose MP3 files from your device
    At the top of this page, drag and drop your MP3's.
    You can also click to select MP3 files using your operating system's file picker.
    Another method is to press the keyboard shortcut Ctrl+V (⌘+V on Mac) to paste an MP3 file you have copied to clipboard.
    Converting a folder with MP3 files to MP4 is also supported: simply paste or drag and drop it.
  2. Click or tap on MP4 from the list of target formats
    Alternatively, you can use the search field to quickly find the format you need, whether it's MP4 or something else.
  3. Download your MP4 files, after MConverter has finished processing them
    There's an option to automatically download the converted MP4 files, so you don't have to press the download icon for each MP4.
    On desktop platforms, you can download the MP4 files to a different folder by clicking on SAVE TO...
    You may see a share icon as well. Use it to directly share the MP4's with other apps.

About the formats

Extension mp3
Category Audio file formats
Developed by MPEG (Moving Picture Experts Group)
Mime type audio/mpeg

Description

MP3 is a commonly used audio format. The audio data is compressed inside the file, which is why MP3 files take up less space than WAV, for example. Even though the audio is compressed, the quality is still good enough for most personal use cases.
Extension mp4
Category Video file formats
Developed by MPEG (Moving Picture Experts Group)
Mime type video/mp4

Description

MP4 (short for MPEG-4 Part 14) files store multimedia - video, audio and subtitles. Websites frequently use them for displaying videos because the MP4 format is universally supported.
However, newer video formats, such as WebM, produce smaller file sizes with almost no quality loss. Therefore, you can free up storage by converting your videos to WebM.

Common questions about converting MP3 to MP4

Will the video be black?

If the MP3 has no embedded album cover, then the video will be a just black background.
If your MP3 contains album art, the MP4 video will display it throughout the whole duration.

Can the MP4 be uploaded to YouTube without a "Processing abandoned" error?

Yes, your converted videos can be uploaded to YouTube successfully. Still, keep in mind that music copyright laws may have an impact on your uploads.

Can I convert MP3 to MP4 in bulk?

Yes, MConverter supports batch converting of multiple MP3's to MP4's simultaneously. You can even drag and drop folders containing MP3's to convert to MP4.
Pasting MP3 files and folders copied in the clipboard also works: use Ctrl+V.

Can I convert an MP3 file to MP4, if its size is 2 GB?

Yes, with MConverter Pro you can convert big MP3's, up to 2 gigabytes each.
The free version lets you convert files up to 100 MB. If you need to convert MP3 files over 100 megabytes, try MConverter Pro. If your files aren’t over 1 GB, then you can use MConverter Plus instead, as it’s cheaper.

Is converting MP3's to MP4 safe with MConverter?

Yes, we encrypt your connection using industry standards. Plus, your MP3 files are only accessible by you. 4 hours after the conversion completes, they are automatically deleted from MConverter’s servers. You can also delete your MP3's and other converted files immediately after finishing the conversion by clicking the bin icon.
Join others who have trusted us to convert over 6,294,725 files so far.

How long does it take to convert MP3 to MP4?

For most audio files, the wait is usually around a minute. However, MConverter also supports converting larger audio files, meaning that it could take a while (up to over an hour, for example).

MP3 to MP4 Converter Rating

4.8
204 votes

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  • Convert 2 files at once
  • 100 MB maximum file size
  • 10 conversions per day
    • May be reduced to 1 depending on use
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  • Convert 250 files at once
  • 1 GB maximum file size
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  • Money-back guarantee Terms apply, see Refund Policy
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  • Priority customer support

Pro

New!

  • Convert 750 files at once
  • 2 GB maximum file size
  • Unlimited conversions per day
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  • Money-back guarantee Terms apply, see Refund Policy
  • No branding in file names Learn more about branding in file names
  • Use it on all of your devices
  • Access conversion history
  • Highest priority customer support

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What our customers say

Whitney
Dec 6, 2021
This app is exactly what I asked for and is super easy to use. I am not a big time computer wizard so I need apps that do what they say do in a straightforward process. This app does just that! I love it and will continue to use it and will advise others or it as well. Good job to the owners/writers! And, sincere THANK YOU!
Antonio Hurtado
Mar 16, 2022
The most fantastic, fastest, best and easiest file converter I have ever had installed on my mobile. You deserve all the praise possible, more than happy, I am super grateful, I will always be grateful to you for this super fantastic application. This super fantastic app has literally saved my life, now I can read novels and books in any format, including pdf, which has very small print, in epub format 🌟🌟🌟🌟🌟 Thank you very much👏👍🤝😊❤️
matt32
Apr 6, 2023
AMAZING! This is the perfect file converter! The first thing I used it for was to convert WMV files to MP4 and it worked flawlessly. I then realized it supports all kinds of formats and is basically unlimited. The UI is very user-friendly and super easy to navigate. Incredible app, MConverter!
지나가던인간
Sep 22, 2021
(translated)
Although there are occasional errors, I was very impressed with the efforts of the developers to receive feedback from users and to improve the inconveniences quickly. I will be using it more often in the future.
Scott
Apr 28, 2022
I grab the webm I want to move to my phone and drag it over to the app, I click the type of file I want the webm converted to (mp4), it does it in 10 seconds. easiest 5/5 of my life.

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