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Free AVI to MP4 Converter Online

Make your video easier to play, upload, and share. Convert AVI to MP4 online, with support for uploads up to 20GB and no desktop app required.

Convert MP4 to AVI

Drag & Drop your AVI file here

MP4, MOV, AVI, MKV, WebM, and other supported video formats, up to 20GB

Privacy Files stay private.

Privacy Automatically deleted after 24 hours.

LinkPrivacy 20GB upload limit.

5.0/5

Trusted for 1,827,796+ conversions

HOW IT WORKS

Convert AVI to MP4 in three steps

A simple three-step workflow for turning your file into the format you need.

01

Select AVI files

Drag and drop or upload the AVI files you want to convert to MP4.

02

Start to MP4

Choose MP4 as the output format and start the conversion.

03

Get your MP4

Download each MP4 file as it finishes, or collect batch results together when a zip download is available.

AVI

AVI is a long-standing Microsoft video container used by older cameras, software, and Windows workflows. It can carry many codecs, but AVI files are often larger and less convenient for modern web and mobile playback.

MP4

MP4 is one of the most widely supported video containers for web, mobile, social media, presentations, and everyday playback. It balances quality, compatibility, and file size well when paired with common codecs.

USE CASES

Use Cases for AVI to MP4

When a MP4 file fits the next step better than the original AVI.

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Modernize old AVI camera footage

Convert older AVI videos to MP4 so they are easier to watch on current phones, laptops, browsers, and media players.

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Reduce friction when sharing large legacy videos

AVI files can be cumbersome to send. An MP4 version can be more practical for cloud links, email alternatives, and client delivery.

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Upload archived AVI clips to social media

Most social publishing tools are built around MP4. Convert a legacy clip before posting it.

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Watch old AVI files on a phone or tablet

Mobile apps may not support the codec inside an AVI. MP4 is a more common target for everyday playback.

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Move AVI content into a browser editor

If an online editor rejects AVI, convert the file to MP4 before uploading it to the project.

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Embed old video on a website

Create an MP4 copy of an AVI archive when you need to publish the footage through a CMS or HTML5 player.

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Prepare AVI clips for cloud storage previews

Cloud drives often generate better in-browser previews for common MP4 video than for legacy AVI files.

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Use an old AVI in a modern presentation

Convert the clip to MP4 before inserting it into PowerPoint, Keynote, or a web-based slide deck.

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Standardize a digital video archive

Create MP4 access copies while keeping original AVI files when you want easier browsing without discarding the source.

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Send legacy footage to a client or family member

An MP4 copy avoids asking the recipient to troubleshoot old codecs or install another media player.

MORE AVI TOOLS

Explore our other video operations

AVI (Audio Video Interleave) is a multimedia container format introduced by Microsoft. It enables the synchronization of audio and video streams effectively, supporting various codecs for diverse media playback. Ideal for high-quality video recording, AVI files deliver impressive visual and audio fidelity, making them a preferred choice for multimedia enthusiasts and professionals alike.

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1.8M+

Files converted

and counting

5.0

Average rating

from 3+ reviews

~4s

Avg. conversion

per file

0

Files kept

Auto-delete in 24h

WHY DRAGDROPDO

Built to be quick, safe, and free

Convert AVI files in the browser with a simple workflow designed for privacy, compatibility, and fast handoff.

Private by default

Files are encrypted in transit and automatically removed after 24 hours.

No install required

Run the conversion in your browser — no desktop app and no sign-up wall to get started.

Cloud import

Pull supported files from Google Drive and keep working without downloading them locally first.

Share & download

Download finished files, collect batch results as a zip, or use available share-link and QR options for handoff.

FAQ

Frequently Asked Questions

Answers to common questions about dragdropdo's AVI to MP4 converter.