AVI is an older Windows container — reliable, but bulky and unsupported by most phones and modern apps. Converting AVI to MP4 shrinks the file and makes it play everywhere. Drop your AVI in and get a clean MP4 back in seconds, free and watermark-free.
Upload your AVI file
Click “Convert to MP4” and let it process
Download your new MP4 — ready to share or edit
Upload your AVI file, click “Convert to MP4”, and download the result. It happens in your browser in seconds — no software needed.
Yes, it's completely free. There's no watermark and no sign-up required to convert your AVI to MP4.
No — the converter preserves your video's quality while changing the format to MP4, which is widely supported across devices and apps.
Your file is only used to perform the conversion and is never shared. For sensitive content, you stay in control the whole time.
Free, fast tools to compress, convert, trim and clean up your videos — no sign-up.