Convert AVI to MP4
Drop your AVI and get MP4 back in seconds. Our AI handles the conversion — no settings, no software, nothing to learn.
Talk to your files
Anything that used to take five menus and three export dialogs is now one sentence in the chat. Watch it work:
Built for how you actually work
One assistant instead of a dozen single-purpose converter sites.
Every format in one place
Images, documents, video, audio and data — 50+ formats handled by one chat, with a dedicated page for every conversion.
Private by design
Your files are used to run your conversion and nothing else. No sharing, no training, and everything auto-deletes within 24 hours.
Seconds, not minutes
Most conversions come back before you'd have found the right export menu.
Speaks your language
The whole product — pages, assistant and answers — works in seven languages.
Nothing to install
Runs entirely in your browser, on any device. No apps, no accounts to start, no updates.
AVI vs MP4 at a glance
| AVI | MP4 | |
|---|---|---|
| Type | Video | Video |
| File extension | .avi | .mp4 |
| Compression | Depends on codec | Depends on codec |
| Support | Specific apps only | Opens everywhere |
| Best for | Legacy Windows video | Sharing and publishing video |
What is a AVI file?
AVI is Microsoft's 1992 video container, still found in old camera footage and archives. It works with legacy Windows software but wastes space and can't handle modern codecs or streaming properly.
What is a MP4 file?
MP4 (usually with H.264 video and AAC audio inside) is the universal video format: every phone, browser, TV and editing app plays it. It balances quality and size well, which makes it the safe choice for sharing, embedding and uploading.
Why convert AVI to MP4?
AVI is a legacy container with poor codec and streaming support, so modern devices and sites frequently reject it. MP4 with H.264 plays on virtually every device and platform, making it the default for sharing and uploading video.
AVI to MP4, answered
Common questions about converting AVI to MP4.
Drop your AVI into the chat and ask to convert it to MP4. The assistant runs the conversion and gives you a MP4 to download — usually in a second or two.
Yes. You can convert AVI to MP4 for free as a guest. Signing in raises your limits and lets you convert more files per day.
No. Everything runs in your browser — there's nothing to download or set up. Just drop your AVI and go.
Your AVI is only used to run the conversion you asked for. We don't share it or use it for anything else, and it's automatically deleted from our servers within 24 hours.