How to use the AVI to MP3 converter
- Choose your AVI video or drop it on the box.
- Pick an audio quality. 192 kbps is the usual choice; 320 kbps for music you care about, 128 kbps for speech.
- Click "Convert to MP3". A progress meter shows how far along it is.
- Download your MP3 and listen to it right on the page.
Why convert AVI to MP3?
Old AVI clips from digital cameras and the DivX era often hold family moments, speeches or music you want to keep as audio. AVI to MP3 makes that sound easy to play and share.
- AVI: large files compared with modern formats.
- MP3: plays on every device.
- MP3: small files.
Many AVI files already use MP3 sound inside. Picking the same or a higher bitrate (192 kbps) avoids any noticeable change.
AVI vs MP3
| AVI | MP3 | |
|---|---|---|
| Full name | Audio Video Interleave | MPEG-1 Audio Layer III |
| Type | Video | Audio |
| Created by | Microsoft (1992) | the Fraunhofer Institute and MPEG (1993) |
| Compression | Lossy | Lossy |
| Typical codecs | MPEG-4 Part 2 (DivX/XviD) + MP3 | MP3 |
| Best for | Older camera clips, legacy video archives and Windows software | Music, podcasts, audiobooks and ringtones |
| Plays on | Windows Media Player, VLC and most desktop players; phones and browsers often refuse AVI | Every phone, computer, car stereo, smart speaker and browser |
Does converting AVI to MP3 lose quality?
Only the sound is kept and re-encoded as MP3. Video soundtracks are usually AAC at 128–256 kbps, so choosing 192 kbps or more keeps the MP3 sounding the same as the video.
How long does it take?
Fast. Only the sound is decoded, so even a long video usually converts in well under a minute.
What is an AVI file?
AVI is one of the oldest video containers, introduced by Microsoft with Windows 3.1 in 1992. Older digital cameras, DVD rips and many 2000s downloads are AVI files, usually with DivX or XviD video and MP3 sound.
What is an MP3 file?
MP3 is the most widely used audio format in the world. It removes sounds people are unlikely to hear, shrinking a song to about a tenth of its CD size. At 192 kbps or higher most listeners cannot tell it from the original, and every device plays it. Its patents expired in 2017, so it is now free to use.
Frequently asked questions
How much does the AVI to MP3 converter cost?
Nothing. It is free with no registration, no watermark and no limit on how many files you convert.
Is my file uploaded to a server?
No. The converter runs inside your browser using WebAssembly, so your file is processed on your own device and never sent to us or anyone else.
Will the MP3 sound as good as the AVI?
Only the sound is kept and re-encoded as MP3. Video soundtracks are usually AAC at 128–256 kbps, so choosing 192 kbps or more keeps the MP3 sounding the same as the video.
Can I convert MP3 back to AVI?
Yes, use the AVI Converter and choose AVI as the output.
An AVI will not play on a phone or in a browser. What should I do?
Convert it to MP4 for universal playback.
Can I use it on my phone?
Yes. Open the page in your phone's browser and choose a file. Phones have less memory than computers, so very large files are better converted on a laptop or desktop.