RecBeamFree tool
Convert AVI to MP4
Bring old AVI videos up to date. Convert them to MP4 for smaller files that play in browsers, phones and editors.
- Free, no watermark
- Files stay on your device
- No sign-up
Drop your AVI file here
or
Choose a file to start. It is processed in your browser and never uploaded.
AVI to MP4 in three steps
Choose your file
Drop a AVI file into the box above or pick one from your computer.
Convert in your browser
RecBeam's converter runs on your own device, so nothing is uploaded anywhere.
Download
Preview the result and save it. No watermark, no account.
Why convert AVI to MP4
AVI is an older container that many modern apps and websites no longer play. MP4 is the modern standard.
Record it right the first time
RecBeam records your screen, camera and voice in Chrome and gives you a shareable link the moment you stop. Free to start.
Get RecBeam for ChromeHow to convert AVI to MP4
- Drop your AVI file (or files) onto the page, or choose them from your computer.
- Press Convert. Everything runs in your browser, so a progress bar shows the work on your own device.
- Download the MP4 result.
About AVI and MP4
AVI is an older Microsoft video container. Files tend to be large and modern devices and websites often do not support it well.
MP4 is the most widely supported video container. It usually holds H.264 video with AAC audio and plays on phones, TVs, editing software, social platforms and every major browser.
When to convert AVI to MP4
Convert to shrink old AVI files and make them play on current phones, TVs and editors.
Tip
MP4 files are usually much smaller than AVI at similar quality.
Your files stay on your device
This tool runs in your browser. Your files are not uploaded to RecBeam or anywhere else, there is no sign-up and nothing is added to your file. Browse all the free tools.
AVI to MP4: frequently asked questions
Are all AVI files supported?
Most are. AVI can hold many different codecs, and a few rare ones may not convert in the browser.
Is it really free?
Yes. There is no price, no account, no watermark and no limit on how many files you convert.
Are my files uploaded?
No. The conversion runs entirely in your browser on your own computer. Your video never leaves your device.
Is there a file size limit?
Files up to about 1 GB work well. Very large files depend on your computer's memory and can be slow.
Why does the first conversion take longer?
The first time, your browser downloads the converter (about 30 MB). It is cached after that.