How to convert AVI to MP4
Drop your AVI files into the box at the top of the page, or click it to browse your files. The converter makes a copy of each one in MP4 format. The conversion runs in your browser, so your videos never leave your device.
You can also choose a quality level, scale the video down to a lower resolution, lower the frame rate, rotate the video, trim it and remove the audio.
Converting AVI to MP4
AVI is typically used for older camera footage and downloaded video, while MP4 is used for sharing and uploading video, because it plays almost everywhere.
What changes when I convert AVI to MP4?
AVI is an older format, so your browser cannot convert it by itself. The first time, the converter downloads about 30 MB of extra code. It then runs more slowly than for modern formats.
The converter re-encodes the video, which costs a small amount of detail. Choose High quality for less loss and a larger file, or Small for the opposite.
The MP4 file uses H.264 video and AAC audio when your browser can create them, so it plays on nearly every device.
What are the limits when converting AVI to MP4?
You can convert up to 10 videos a day for free, each up to 1 GB and 10 minutes long, at up to 1080p. Pro removes the daily limit and accepts videos up to 2 GB and 60 minutes long, with no resolution cap. See the plans.
Understanding AVI
AVI is an old Microsoft video format from the 1990s. Many cameras, screen recorders and older downloads still use it. Few phones and browsers can play it today.
Understanding MP4
MP4 is the most widely supported video format. It plays on phones, computers, TVs, browsers and social media sites, usually with H.264 video and AAC audio.