Will the video lose quality?

The video is re-encoded, so there is a small trade-off, but at a reasonable setting the result looks essentially the same as the original.

Will the MP4 be smaller?

Usually yes. MP4 compresses more efficiently than most AVI files, so the converted file is often noticeably smaller.

Yes, the audio track is carried over into the MP4 along with the video.

Will it play on my phone?

Yes. MP4 is the most broadly supported video format, so it plays on essentially all phones and devices.

AVI to MP4 Converter

Convert AVI to MP4 online quickly and easily. Just upload your file, convert it, and download the MP4 in seconds.

Download All

Convert all to

Select Files

Drag and drop files here. SignUp for more features.

What is AVI ?

AVI (Audio Video Interleave) is a multimedia container format introduced by Microsoft in 1992. It allows for the storage of video and audio data in a single file, enabling synchronized playback of both media types.

AVI format ▶

What is MP4 ?

MP4, or MPEG-4 Part 14, is a digital multimedia container format commonly used to store video and audio streams, as well as subtitles and still images. It is widely supported across various devices and platforms, making it a popular choice for video sharing and streaming applications.

MP4 format ▶

How to Convert AVI to MP4 in Just a Few Steps

Upload your AVI file
Drag and drop your AVI file, click 'Select Files' to upload from your device, or import directly from Dropbox, Google Drive, OneDrive, or paste a URL.
Choose MP4 as output format
The converter is preset to MP4, but you can select any other output format before converting.
Adjust settings (optional)
If you like, tweak output options such as resolution, quality, or compression before converting.
Convert the file
Click the 'Convert' button. The conversion takes only a few seconds.
Download your converted file
Download the converted file to your device, or save it directly to Google Drive, Dropbox, or OneDrive.

Why Convert AVI to MP4 file?

AVI is an older video format that, while once everywhere, now causes friction on modern devices, phones, and websites that expect something more current. Converting AVI to MP4 brings your video up to date, turning it into the format that plays smoothly on practically every device, browser, and platform. It is the go-to fix when an AVI will not upload, will not play on a phone, or is rejected by an online service.

MP4 is also far more efficient, so the converted file is typically smaller than the original AVI while looking just as good. This makes it easy to share, stream, and store. Whether you are posting to social media, sending a clip to someone, or simply modernizing an old video collection, converting AVI to MP4 gives you a file that behaves well everywhere without a noticeable drop in quality.

Start converting AVI to MP4 now — it’s fast, safe, and completely online!

Frequently Asked Questions

Why convert AVI to MP4?

AVI is an older, often bulky format. MP4 produces smaller files, streams well online, and plays on phones, browsers, and modern devices that may struggle with AVI.
Will the video lose quality?

The video is re-encoded, so there is a small trade-off, but at a reasonable setting the result looks essentially the same as the original.
Will the MP4 be smaller?

Usually yes. MP4 compresses more efficiently than most AVI files, so the converted file is often noticeably smaller.
Is the audio kept?

Yes, the audio track is carried over into the MP4 along with the video.
Will it play on my phone?

Yes. MP4 is the most broadly supported video format, so it plays on essentially all phones and devices.

Guest Plan

Monthly Conversions Quota

Concurrent Conversions

Daily Conversions

Enter URL: