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Convert and compress videos/audios.

All-in-One Video Converter

Wondershare UniConverter

  • Convert MP3 to AVI, MP4, 3GP and vice versa in batch.
  • Convert DVD to MP3, AVI, MP4, MOV, MP3 and other 1000 formats.
  • Burn videos in any format to DVD easily.
  • Download online videos from YouTube and other 10,000 sites.
  • All-in-one tool: video editor, screen recorder, and more.
MP3 to AVI converter


1. Convert Popular Formats to AVI+
  1. 1.1 WMV to AVI Converter
  2. 1.2 MOV to AVI Converter
  3. 1.3 MOV to AVI Converter for Mac
  4. 1.4 MKV to AVI Converter
  5. 1.5 Free MP4 to AVI Converter
  6. 1.6 WebM to AVI Converter
  7. 1.7 MPG to AVI Converter
  8. 1.8 FLV to AVI Converter
  9. 1.9 Convert ISO to AVI
  10. 1.10 Convert M4V to AVI
  11. 1.11 3GP to AVI Converter
  12. 1.12 RMVB to AVI Converter
  13. 1.13 DivX to AVI Converter
  14. 1.14 WLMP to AVI Converter
  15. 1.15 VRO to AVI Converter
  16. 1.16 Video TS to AVI Converter
  17. 1.17 DV to AVI Conveter
  18. 1.18 MTS to AVI Converter
  19. 1.19 VOB to AVI Converter
  20. 1.20 Convert MP3 to AVI
  21. 1.21 MKV to AVI Conveter
  22. 1.22 GIF to AVI Converter
  23. 1.23 MP4 to AVI Converter with VLC
  24. 1.24 Convert FLV to AVI
2. Convert Other Formats to AVI+
  1. 2.1 ASF to AVI Converter
  2. 2.2 MXF to AVI Converter
  3. 2.3 MOD to AVI Converter
  4. 2.4 Convert MP4 to AVI
  5. 2.5 Convert MP4 to AVI on Mac
  6. 2.5 Convert DVD to AVI
  7. 2.7 Convert WTV to AVI
  8. 2.8 Convert DVR to AVI
  9. 2.9 Convert Torrent to AVI
  10. 2.10 Convert AVCHD to AVI
  11. 2.11 Convert MSWMM to AVI
  12. 2.12 Convert OGV to AVI
  13. 2.13 Convert YouTube video to AVI
  14. 2.14 Convert Windows Movie Maker Video to AVI
  15. 2.15 Convert Windows DVD Maker Video to AVI
  16. 2.16 Burn DVD to AVI with handbrake
  17. 2.17 Export Windows Live Movie Maker in AVI
  18. 2.18 Free M2TS to AVI Converter
  19. 2.19 Convert JPG to AVI
  20. 2.20 Convert PPT to AVI
3. Convert AVI to Popular Formats+
  1. 3.1 AVI to MOV Converter
  2. 3.2 AVI to MOV Online Converter
  3. 3.3 AVI to MKV Converter
  4. 3.4 AVI to 3GP Online Converter
  5. 3.5 AVI to M4V Converter
  6. 3.6 AVI to FLV Converter
  7. 3.7 AVI to WMV Converter
  8. 3.8 Free AVI to MPEG Converter
  9. 3.9 AVI to SWF Converter
  10. 3.10 AVI to DVD Converter
  11. 3.11 AVI to DivX Converter
  12. 3.12 AVI to ISO Converter
  13. 3.13 AVI to TS Converter
  14. 3.14 AVI to VOB Converter
  15. 3.15 Convert AVI to MP4
  16. 3.16 Convert AVI to MP3
  17. 3.17 AVI to MPEG Converter for Mac
  18. 3.18 AVI to MPEG Converter
  19. 3.19 Convert AVI to MP4 with VLC
  20. 3.20 Convert AVI to WAV
4. Convert AVI to Other Formats+
  1. 4.1 Convert AVI to iTunes
  2. 4.2 Convert AVI to WebM
  3. 4.3 Convert AVI to 3GP
  4. 4.4 Convert AVI to iMovie
  5. 4.5 Import AVI to iMovie
  6. 4.6 Convert AVI to Xvid
  7. 4.7 Convert AVI to Chromecast
  8. 4.8 Convert AVI to MPEG2
  9. 4.9 Convert AVI to MPEG4
  10. 4.10 Convert AVI to iPod
  11. 4.11 Convert AVI to GIF
  12. 4.12 Convert AVI to iPhone
  13. 4.13 Convert AVI to FCP Mac
  14. 4.14 Convert AVI to YouTube
  15. 4.15 Burn AVI to DVD
5. Convert AVI Online +
  1. 5.1 Online AVI Converter
  2. 5.2 Online Video Converter to AVI
  3. 5.3 Free WMV to AVI Online Converter
  4. 5.4 Free VOB to AVI Online Converter
  5. 5.5 MP4 to AVI Converter Online
  6. 5.6 FLV to AVI Converter Online
  7. 5.7 Convert AVI to MP4 Online
  8. 5.8 Convert AVI to MPEG Online
  9. 5.9 Convert MKV to AVI Online
6. Play AVI+
  1. 6.1 Top AVI Player
  2. 6.2 Play AVI on Mac
  3. 6.3 Play AVI on iPad
  4. 6.4 Play AVI on iPhone
  5. 6.5 Play AVI on Xbox one
  6. 6.6 Play AVI on Xbox360
  7. 6.7 Play AVI with VLC Player
  8. 6.8 Play AVI in QuickTime
  9. 6.9 Play AVI in Windows Media Player
  10. 6.10 Play AVI in Samsung galaxy s6
  11. 6.11 Play AVI on Apple TV
  12. 6.12 Play AVI on TV
7. AVI Tips & Tricks+
  1. 7.1 MOVAVI Alternative for Windows
  2. 7.2 MOVAVI Alternative
  3. 7.3 Free AVI Converter on Mac
  4. 7.4 AVI Converter for Windows 10
  5. 7.5 Free AVI Converters on Mac
  6. 7.6 AVI Converters
  7. 7.7 Free AVI Player for windows
  8. 7.8 AVI Player for Mac
  9. 7.9 AVI Cutter
  10. 7.10 Make AVI Smaller
  11. 7.11 Reduce AVI File Size
  12. 7.12 Compress AVI
  13. 7.13 Add Metadata to AVI
  14. 7.14 3D AVI Creator
  15. 7.15 Repair AVI File
  16. 7.16 What Is an AVI File

How to Convert MP3 to AVI for Free

by Christine Smith • 2024-01-11 10:26:19 • Proven solutions

MP3 is a commonly used audio format that is compatible with a number of devices and players. Still, there arise situations when you would need to play your audio files using a video player or a device that does not support MP3 format. Here, the need to convert MP3 to AVI arises. To have a hassle-free, lossless quality conversion, a good MP3 to AVI video converter is needed.

Part 1. Best MP3 to AVI Video Converter Mac/Windows

Your search for the best MP3 to AVI video converter ends as Wondershare UniConverter (originally Wondershare Video Converter Ultimate) is there. This professional tool facilitates high-quality conversion between 1000 video and audio formats on your Windows and Mac system. In addition to this, it can also download videos from YouTube, Vimeo, and over 10,000 sites. It supports video editing with its complete editor, video transfer, and other functions.

Wondershare UniConverter - Best MP4 to AVI Video Converter for Windows/Mac (Catalina Included)

  • Support adding multiple files at a time for batch MP3 to AVI conversion.
  • Super fast conversion speed (30X faster) owing to APEXTRANS technology of the software.
  • Choose the resolution and quality of the output file.
  • Edit, enhance & personalize your ISO files before ISO to AVI.
  • Burn videos to DVD/ISO with free DVD menu templates.
  • Download or record videos from 10,000+ video sharing sites.
  • Versatile toolbox combines video metadata editor, GIF maker, video compressor, and screen recorder.
  • Supported OS: Windows 10/8/7/XP/Vista, macOS 11 Big Sur, 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6.
Security Verified. 5,481,347 people have downloaded it.

Steps on how to convert MP3 to AVI using Wondershare UniConverter

Step 1 Open Wondershare MP3 to AVI converter and load MP3 files.

On your PC/Mac, launch Wondershare UniConverter. As the main interface appears, choose the Converter tab. Click on the add files to import local MP3 files. Alternatively, drag and drop also works here.

Open Wondershare MP3 to AVI converter and load MP3 files

Step 2 Choose AVI as the target format and customize it if you need.

As the files are successfully added, they appear on the interface with information. Expand the drop-down menu at the Output Format: option on the top-right corner. From the Video list, choose AVI as the target format. Also, select the resolution of the file. You're optional to click the Create to customize the AVI format by adjusting the bitrate, resolution, encoder, frame, etc.


With Wondershare UniConverter,you can compress video with simple steps. Move to How to compress video to reduce video size>> to learn more.

Choose AVI as target format

Step 3 Convert MP3 to AVI.

Choose the PC location on the File Location tab to save the converted file. Click the Start All button to start the conversion process with this MP3 to AVI audio converter.

The steps above can also be used to convert AVI to MP3 if needed.

Convert MP3 to AVI



If you want to learn more details about AVI to MP3, go to Top 6 Ways to Convert AVI to MP3 >.

Part 2. Free MP3 to AVI Converter Online Tools

For users who have a limited number of MP3 files for conversion and do not require advanced features, MP3 to AVI converter online works as a decent option. Listed below are the MP3 to AVI converter online free tools for your reference.

1. Online Video Converter

This is a decent MP3 to AVI converter online program that allows quick and quality conversion. The program is compatible with all modern browsers and supports an array of video and audio formats. Popular online video portals like YouTube Vimeo and Dailymotion are also supported.

Convert MP3 to AVI with Online Video Converter

Steps to convert MP3 to AVI online free:

Step 1: From your browser, open Click the SELECT OR DROP FILE option to add the MP3 file.

Step 2: Once the file is uploaded to the program, choose AVI as the desired target format from the list of supported video formats.

Step 3: There is an option to choose the quality of the video in terms of resolution. If needed, you can also cut the video.

Step 4: Click Start to proceed with MP3 to AVI conversion process.

2. MP3Toolbox

This MP3 to AVI online program is apt for users looking for a simple process. The tool allows converting your MP3 files to AVI and also uploads the same to YouTube or Facebook if needed. Other formats for conversion are also supported.

Convert MP3 to AVI free with MP3Toolbox

Steps to convert MP3 to AVI free with MP3Toolbox:

Step 1: Open on your PC. Click the Pick MP3 button to add an audio file from your system.

Step 2: As the MP3 file is uploaded to the tool, choose the picture from the given option to use as a video background. You can also upload your own picture.

Step 3: Click Convert MP3 to AVI button to start the process.

3. Convert Files

This MP3 to AVI converter free program features simple to use interface with an option to choose video quality as well as size in terms of resolution. An array of format and file types, including video, audio, archive, and others, are supported by the tool for conversion.

Convert MP3 to AVI online with Convert Files

Steps to convert MP3 to AVI file online with Convert Files:

Step 1: Launch from your browser. Click Select a file button to import MP3 from the computer.

Step 2: Select AVI as a target format. Choose output file quality from options – Low, Moderate, High, and Very High. Also, choose file size in terms of resolution.

Step 3: Click the Convert button to start uploading and converting MP3 to AVI.

4. Online-Convert

This online conversion tool facilitates converting your MP3 files to AVI format with an array of additional features. You can edit your video with features like cut, crop, rotate, and flip. File parameters like resolution, frame rate, size, and others can be edited as desired.

Convert MP3 to AVI online with Online Convert

Steps to convert MP3 to AVI online with Online-Convert:

Step 1: Open on your PC. Click on the Choose file button to add MP3 files from your PC. Alternatively, you can also add a file from URL or Cloud storage.

Step 2: Under the Optional Settings, choose the file parameters like bit rate, size, frame rate, and others. You can also crop the, cut, mirror, flip, and rotate.

Step 3: For future files with similar conversion, you can save settings as well. Click the Convert file to begin the process.

Part 3. The Comparison Table Between Best and Free MP3 to AVI Converters

The table below compares the professional UniConverter and the listed online MP3 to AVI converters so that you can pick up the most suitable one depending on your requirements.



Online Video Converter


Convert Files


Batch file conversion






Conversion Speed






Supported Formats

Over 1000 formats

MP4, M4V, MOV, AVI, FLV, MPG, WMV, and common audio formats

All common video and audio formats

The commonly used video, audio, archive, and other formats

All commonly used formats

Conversion Quality

Lossless quality conversion





Editing Features

Cut, crop, add special effects, add watermark

Allows to cut the video and choose file resolution



Yes, supports to cut, crop, flip and rotate the file







Internet Dependent





Customer Support






Additional Features

Video download from over 10,000 sites, video transfer, DVD burning, GIF making, and others


Upload converted files to YouTube or Facebook

Allows to choose video quality and size

Allows choosing file bit rate, codec, frame rate, and size.

Christine Smith

Christine Smith

chief Editor

Resource > MP3 Solutions > How to Convert MP3 to AVI for Free