AVI to MP4 Converter

Convert AVI to MP4 online at Convertig.com. Fast, free, and secure video converter—no software required. Upload your file and get MP4 output instantly.

100 MB maximum file size and upto 5 files.

Make sure you have uploaded valid files otherwise conversion will not be correct

300+ formats supported

We support more than 25600 different conversions between more than 300 different file formats. More than any other converter.

Fast and easy

Just drop your files on the page, choose an output format and click "Convert" button. Wait a little for the process to complete.

How to use AVI to MP4 Converter?

  1. Click the “Choose Files” button to select your files (up to 20 files at a time)
  2. Click on the “Convert” button to start the conversion
  3. When the status change to Done” click the “Download” button

AVI to MP4 Converter FAQs

The main reason is for universal compatibility and smaller file sizes. AVI is an older format that often fails to play on modern devices like smartphones, tablets, or smart TVs. MP4 is the modern standard that works everywhere, is perfect for sharing online, and uses better compression to save space.

Not necessarily. If your AVI file uses an older video codec, it must be re-encoded into the modern H.264 format used by MP4. While this process is technically "lossy," modern codecs are so efficient that the final MP4 is often visually indistinguishable or even looks better than the original, especially when viewed on modern screens.

The MP4 file is smaller because it uses a much more advanced and efficient compression method, typically H.264. This modern technology is able to store the same amount of high-quality video information in far less space compared to the older and less efficient codecs commonly found inside AVI files.

Think of the container (AVI, MP4) as the "box" the video comes in, and the codec (like H.264 or DivX) as the "language" the video is written in. Your AVI might be a box holding a language that new devices can't understand. This converter teaches your video a new, universal language and puts it in a modern box that everyone recognizes.

Yes, absolutely. The MP4 format is the global standard for video playback today. The file you create with this converter will be compatible with virtually all modern devices, including iPhones, Android phones, smart TVs, game consoles, and will play directly in all web browsers.