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AVI to MP3 Converter

Extract MP3 audio from an AVI video file without installing any software. Drop a .avi file below and the output is already set to MP3.

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Video & Audio Converter

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FORMAT

MP4

WEBM

MKV

MOV

FLV

AVI

TS

Selected Files

Add File

Select All

Select Settings

Video

Audio

Format

Resolution

Advanced Settings

FORMAT

MP4

WEBM

MKV

MOV

FLV

AVI

TS

Total Estimated Output Size: 0.00 KB

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How to Convert AVI to MP3 Online

1

1

Upload your AVI file

Drag and drop your .avi file onto the page or click to browse. You can select several AVI files at once to batch-convert them.

2

2

MP3 is preselected

The output format is already set to MP3, so you can convert immediately. If you need to, adjust the audio codec, bitrate or sample rate in the settings panel first.

3

3

Convert and download

Click Convert. The MP3 file is processed on your own device; nothing is uploaded to a server. When it finishes, click Download to save it (or Download all to get a batch as a ZIP).

Why Convert AVI to MP3?

AVI is a legacy container from the Windows era that many phones and modern apps cannot open. If you only need the soundtrack of an AVI, such as an old home video, a concert recording or a lecture, converting AVI to MP3 gives you a small file that plays everywhere.

The converter decodes the AVI's MP3, AC3 or AAC audio in your browser and re-encodes it to a clean MP3 at the bitrate you choose.

  • Private by design: your AVI file is converted on your own device and never uploaded.
  • MP3 preselected: the output format is already chosen, so it is a one-click conversion.
  • Batch friendly: convert several AVI files in one go and download them as a ZIP.
  • No limits, no watermark: free for files of any size, with nothing stamped on the output.

AVI vs MP3

AVI (Audio Video Interleave): AVI (Audio Video Interleave) is Microsoft's classic container from the early Windows era. It is still recognised by almost every Windows program and older media player, though its files tend to be large. It is best for legacy Windows software and older hardware players.

MP3 (MPEG-1 Audio Layer III): MP3 is the universal lossy audio format. It plays on every device made in the last twenty-five years and offers small files with good quality at 192 to 320 kbps. It is best for music players, podcasts, phones and sharing.

In short: keep AVI when the priority is legacy Windows software and older hardware players, and switch to MP3 when the file is headed for music players, podcasts, phones and sharing. Need a different target? The full Video Converter supports every format listed below.

AVI to MP3 FAQ

01

Can I convert AVI files encoded with DivX or Xvid?

Yes. Only the audio stream is decoded for an MP3 export, and MP3, AC3 and AAC soundtracks are all supported, so the DivX or Xvid video codec does not matter.

02

Is there a limit on AVI file size?

No. Because everything runs on your own computer, even multi-gigabyte AVI files can be converted.

03

Is this AVI to MP3 converter free?

Yes. Converting AVI to MP3 on MediaConverter.io is completely free, with no watermark, no sign-up and no daily conversion limit.

04

Are my AVI files uploaded to a server?

No. The converter runs inside your browser using WebAssembly and WebCodecs, so your .avi file is read and converted on your own device. Nothing is uploaded, which keeps private recordings private and means there is no waiting in an upload queue.

05

Is there a file size limit for AVI to MP3?

No fixed limit. Because processing happens locally, the practical limit is your computer's memory and patience; multi-gigabyte AVI files convert fine on a desktop browser. Very large files take longer on phones.

06

Will converting AVI to MP3 reduce quality?

MP3 is a lossy format, so the AVI audio is decoded and re-encoded. Keep the bitrate at 100% (or pick 256 to 320 kbps) and the difference is inaudible for almost all listeners.

07

Which browsers support the AVI to MP3 converter?

Current versions of Chrome, Edge, Firefox and Safari on desktop all work. Chrome and Edge are fastest because they expose hardware-accelerated WebCodecs decoders.