To convert MP3 to AVI, use MiniTool Video Converter, where you add files, pick AVI, and click Convert All, or FreeConvert, where you upload the MP3, press Convert to AVI, and download the finished file.

What Is MP3

MP3 (MPEG-1 Audio Layer 3 or MPEG-2 Audio Layer 3) is one of the most popular coding formats for digital audio. It was created by the Moving Pictures Experts Group (MPEG) and is widely used for storing and sharing music files.

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What Is AVI

AVI (Audio Video Interleaved) is a multimedia container format introduced by Microsoft in November 1992 as a standard video format for Windows software. It can store both audio and video data, allowing synchronized audio-with-video playback.

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How to Convert MP3 to AVI Free

There are 2 ways available for you to convert MP3 file to AVI.

Choice 1: Using MiniTool Video Converter

Fast steps:

  • Install MiniTool Video Converter.
  • Add target MP3 files.
  • Choose WMA as the output format.
  • Start conversion.
  • Locate the converted file.

MiniTool Video Converter is a reliable tool that can help convert MP3 to AVI. It supports various audio and video formats, provides a simple interface, and allows users to complete the conversion process in just a few steps. Follow the steps below.

1. Install MiniTool Video Converter.

Download and run the installer, then follow the instructions to complete the installation.

MiniTool Video ConverterClick to Download100%Clean & Safe

2. Add target MP3 files.

Launch MiniTool Video Converter and open the main interface. Click Add Files to import the MP3 files you want to convert.

3. Choose WMA as the output format.

Expand the Convert all files to option. Choose the Video tab, click on AVI, and choose the desired quality.

4. Start conversion.

Click the Convert All button to start the MP3 to AVI conversion.

5. Locate the converted file.

After the conversion is complete, click the folder icon under the Completed tab to find the converted file.

MiniTool Video Converter interface showing how to choose the AVI as the output format.
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Choice 2: Use FreeConvert

Fast steps:

  • Open FreeConvert.
  • Upload the MP3 file.
  • Click Convert to AVI.
  • Download the AVI file.
  • Save the converted file.

Many online converters also support MP3 to AVI conversion, such as FreeConvert. You neither need to download the converter program to your local drive nor install it. This will save a lot of time.

1. Open FreeConvert MP3 to AVI Converter.

Access https://www.freeconvert.com/mp3-to-avi.

2. Upload the MP3 file.

Click on the Choose Files button in the middle -> select the MP3 file -> click Open.

3. Choose a file source if needed.

You can also click on the down arrow after that button to choose file From Device, From Dropbox, From Google Drive, or From URL.

4. Click Convert to AVI.

Click on the Convert To AVI button that appeared just now and then wait.

5. Download the converted AVI file.

Click on the Download AVI button when the file uploading and converting processes are finished.

6. Save the AVI file to a preferred location.

Choose a location to save the converted AVI file. Also, this online converter allows you to save the file to Google Drive or Dropbox.

FreeConvert conversion page.

Conclusion

You have two simple ways to change MP3 to AVI. MiniTool Video Converter works well on Windows for offline tasks. FreeConvert runs in your browser with no install needed. Both are free to use. Pick the one that fits you best and start converting today.

For any questions or problems with MiniTool Video Converter, email support@minitool.com.

People Also Ask

What is the difference between MP3 and AVI?
MP3 is an audio format designed for storing and compressing sound files, while AVI is a video container format that can store both video and audio data.
Can you convert an audio file into a video file?
Yes. You can convert audio files to video formats using third-party converters. However, the resulting video will typically display a static image or a looping background animation.
Why do people convert MP3 to AVI?
Some video-sharing websites only accept specific video formats. If a platform supports AVI but not MP3, you can convert the MP3 file to AVI.
Will the audio quality change when converting MP3 to AVI?
No. If the original audio stream is preserved, converting MP3 to AVI does not degrade audio quality. However, selecting different audio settings during the conversion process could affect the final sound quality.
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About The Author

Mia

Position: Columnist

Mia joined MiniTool as an SEO editor following her university graduation, bringing a strong foundation in digital content optimization. She has since developed extensive expertise in creating technical articles and delivering practical solutions for video conversion, video compression, and audio transcription. She remains current with emerging software trends and continuously refines her content strategy based on real user feedback and industry developments.

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