3GP AVI
Free online converter

Convert 3GP to AVI

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3GP to AVI converterFREE

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Tested on macOS, Windows & Linux
Last verified Nov 2026

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How to convert 3GP to AVI

  1. Add your .3GP file - drop it in the box above or click to browse.
  2. Convert it to .AVI in a few seconds.
  3. Download your new .AVI file.

What to expect

  • AVI files are typically 3-8× larger than the source 3GP at default bitrate settings.
  • AMR audio - common in old phone recordings - is not supported inside AVI and is automatically re-encoded to MP3.
  • Re-encoding introduces minor quality loss; at the low resolutions typical of 3GP (under 480p) this is usually not visible.

Frequently asked questions

Can I convert 3GP to AVI for free?
Yes - the on-page converter, VLC, AviDemux, and ffmpeg are all free with no registration required.
Why is my AVI file so much larger than the 3GP?
AVI uses less efficient compression than the codecs inside 3GP, and default re-encoding bitrates tend to be generous. Lower the video bitrate in your tool of choice to reduce the output size.
Will I lose quality when converting?
Some quality loss occurs because the video is re-encoded. At the low resolutions typical of 3GP the difference is usually not noticeable.
My old video editor only accepts AVI - which method is quickest?
Use the on-page converter or VLC; both produce standard AVI files compatible with legacy desktop editors.