Convert any video file to MP3 format online for free. Fast, secure, and easy-to-use video to MP3 converter with no software installation required.
or click below to browse
Max file size: 50 MBMax duration: 30 min
Sign up for increased limitsA free account gets you up to 50 MB and 30 min.
Drag and drop your AVI file, or click to browse for it.
Choose MP3 as the output and click Convert. The conversion runs on our servers, so your device does none of the work.
Download your converted file instantly. The download link expires in 1 hour for security.
Our powerful servers process your files quickly, delivering converted files in seconds.
Convert your files completely free with no hidden costs or subscription fees.
Your file is used only to make your conversion. It is never published or shared, and the download link expires after one hour.
Works directly in your web browser. No software download or installation required.
How the two formats differ on the things that change your result.
| Specification | AVI (source) | MP3 (result) |
|---|---|---|
| Container | RIFF AVI | MPEG-1/2 Audio Layer III |
| Developed by | Microsoft | Fraunhofer IIS / MPEG |
| Introduced | 1992 | 1993 |
| Audio codecs | MP3, PCM, AC-3 | MP3 |
| Compression | Depends on codec | Lossy |
| Approx. file size | 15–90 MB per minute | 0.96–2.4 MB per minute |
| Metadata / tags | — | ID3v2 |
| Licensing | Patents expired | Patents expired |
| Plays natively on | Native: Windows · Needs a player: macOS, iOS, Android, Smart TVs | Native: Web browsers, Windows, macOS, iOS, Android, Smart TVs |
| Best for | legacy archives, Windows media libraries | music libraries, podcasts, sharing with anyone |
Only the soundtrack survives: the video stream is dropped, and the MP3 audio inside the AVI file is re-encoded as MP3.
The size drop is dramatic because the video stream is where nearly all the data lives. A minute of AVI runs around 53 MB; the extracted MP3 is roughly 1.7 MB per minute.
The source can carry more than one audio track, for example alternate languages or a commentary. Extraction takes the primary track.
This tool takes the audio track from inside a AVI file, a RIFF AVI container from 1992, and saves it on its own as MP3. Everything visual is left behind.
AVI comes from Microsoft and dates to 1992. It usually holds MPEG-4 Part 2, DivX, or Xvid video with MP3, PCM, or AC-3 sound, and those streams set the ceiling for anything converted out of it.
MP3 comes from Fraunhofer IIS / MPEG and dates to 1993. It carries lossy-compressed audio (MP3), and without installing anything it plays on web browsers, Windows, macOS, iOS, Android, and smart TVs.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
Quick access to the most commonly used file conversions
And many more format conversions supported