No matter you want to convert video from AVI to MP4, or MP4 to AVI, you can run FVC Free Online Video Converter to change video formats. It is a 100% free and safe video converter that can convert videos between AVI and MP4 online. You can batch convert large AVI and MP4 files with ease.

Step 1:Click Add Files to Convert in the main interface. Download and install its launcher quickly.

Step 2:Select which video to convert from your computer. Click Open to confirm.

Step 3:Set the output video format near the bottom. During this time, you can select MP4 or AVI to complete the video conversion.

Step 4:Click the gear Settings icon to adjust video resolution, frame rate and more. Here you can make your AVI or MP4 file smaller tha before.

Step 5:Click Convert to convert AVI or MP4 video files online.

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