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Convert MP4 to MP3

Convert MP3 to MP4

Convert online and free MP3 to MP4

Free: up to 750 MB per file (Premium: 20 GB)
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Converting in only three steps

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convert . mp3 to . mp4
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4.1/5(39 votes)

With our tool for converting MP3 to MP4 files, you can convert pure audio files (mp3) into videos. You can add a background image to the video using the "Background image" button. The image remains visible throughout the entire video. The maximum resolution of the video is 1920×1080 pixels. If a larger image is uploaded, it will be reduced in size while maintaining the aspect ratio.

4.1/5(39 votes)

Sören RamspeckLast updated on November 15, 2024 by Sören Ramspeck with the experience of more than 128,572,650 converted files since 2013.

How to convert MP3 to MP4 online?

  1. Upload MP3 file Choose your MP3 file with the "Choose File" Button, Drag & Drop or import it directly from Dropbox/Google Drive.
  2. Choose target filetype MP4 is set as default target format. Change it if you need a different target filetype for your conversion.
  3. Select background image Optional: Upload an image (JPG/PNG) as a video still. It will be automatically scaled to a maximum of 3840 x 2160 pixels.
  4. Start Conversion Click "Start Converting!". Most files process in seconds, only the largest files may take a few minutes.
  5. Download your MP4 file Download your finished MP4 file. Your files will be automatically deleted from our servers.
How to convert MP3 files online to MP4

Currently we support the following conversions with MP3 files:

All Converters

Information about the extensions for the conversion from MP3 to MP4

From: MP3

universal, lossy audio format

MPEG-1 or MPEG-2 Audio Layer III, mostly known as mp3 or MP3, designates a format for coding digital audio data. MP3 still ranks among the most popular formats for storing audio data. In the early 80s, the German Fraunhofer Institut developed MP3 as …

File extension: .mp3
More information and converters for MP3

To: MP4

universal MPEG-4 video container

MP4 is a container format that can include multimedia content such as video and sound tracks, graphics, 2D and 3D animations, subtitled texts, interactive applications in the form of menus, and much more. Despite the strong compression, a file in MP4 …

File extension: .mp4
More information and converters for MP4

Convert MP3 to MP4 - Frequently asked Questions

To convert an MP3 file into an MP4 file, an image must be added. With file-converter-online.com, this is possible in just a few steps: select the MP3 file, add the image as a background (PNG or JPG) and start the conversion. After a few seconds, the file is ready for download.
Yes, the sound quality is fully preserved. The audio is transferred directly to the MP4 container without recompression
Conversion takes approx. 10 seconds for 5-minute MP3 files. Longer files with several hours of audio content can also take several minutes to convert.
The MP3 file can be a maximum of 750 MB in size, which corresponds to several hours of music. With our Premium account, up to 20 GB is optionally possible. The image file may be a maximum of 100 MB in size.
All common image formats such as .JPG, .PNG, .TIFF and many more are supported.
Yes, the aspect ratio of the image then determines the aspect ratio of the MP4 file.
The videos are created in a maximum resolution of 3840x2160 pixels (4k resolution).
Yes, the video resolution corresponds exactly to the resolution of the uploaded background image, up to a maximum of 3840x2160 pixels (portrait or landscape format).
Yes, the new MP4 file can be uploaded to YouTube without any problems. All our conversion parameters are also optimised for YouTube.
Yes, the new MP4 file can also be uploaded to Instagram or TikTok. For optimal display, we recommend a portrait format image (aspect ratio 9:16) for stories and reels.
Yes, MP4 files created with file-converter-online.com are also suitable for podcasts with a static preview image (content, authors, cover image).
For YouTube and desktop platforms, we recommend 16:9 format (e.g. 1920 x1080px). For Instagram Stories, TikTok and YouTube Shorts, the 9:16 format (e.g. 1080 x 1920px) is best suited.

Guides and Tips - Convert MP3 to MP4

Video-Tutorial: Convert MP3 to MP4

File-Converter-Online.com converts your files for free – no registration, no installation, no watermarks. Works on any device - Windows, macOS, Linux, Android and iOS. The free version supports files up to 750 MB, with Premium up to 20 GB. Our servers are located in Germany, all files are encrypted during transfer and automatically deleted after conversion. Since 2013, we have converted over 128,572,650 files - if you have any questions or issues, you can reach us anytime via the contact form.

2 Comments

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  1. Lass
    27. July 2021

    Thank you so much. Thanks so much for the effort you guys put in and we really appreciate that.

  2. Gunman
    8. March 2020

    what a great site. will use again.. Thanks


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