AVI to MP4 Converter — Free Online

Q: How do I convert AVI to MP4 online?

Drag and drop your AVI file onto the upload area above, click "Convert to MP4", and download the result when it's ready. The entire conversion runs on our servers — no software to install, no account required for files up to 1GB.

Q: How do I open an AVI file on a Mac?

AVI files don't open natively in QuickTime on Mac. You have two options: install VLC (which plays AVI without extra codecs), or convert the AVI to MP4 using our tool — the resulting MP4 opens instantly in QuickTime, IINA, or any Mac media player.

Q: Does converting AVI to MP4 lose quality?

No. We re-encode to H.264 MP4 at high quality settings, which is visually lossless for virtually all use cases. The output will look identical to the original, and the file size is often smaller thanks to H.264's more efficient compression.

Q: Why is MP4 better than AVI?

AVI is a Microsoft format from 1992 with no native support on iPhone, iPad, Android, or most modern smart TVs. MP4 with H.264 is the universal standard — supported by every device, browser, platform, and video hosting service. It also produces smaller file sizes at the same quality.

Q: Is the AVI to MP4 converter free?

Yes, completely free for files up to 1GB with no account required. Enter your email to unlock up to 2GB, or sign up for a free vitelnk trial to convert files up to 5GB. No watermarks, no hidden fees.

Q: Does this work with old camcorder AVI files?

Yes. Our converter handles AVI files from older camcorders, digital cameras, DVD rips, and screen recording software. It supports the most common AVI codecs including DivX, Xvid, and uncompressed formats.

Q: How long does it take to convert AVI to MP4?

Most files under 1GB convert in under a minute on our dedicated servers. Conversion time depends on the file size and resolution — a 500MB file typically takes 30–60 seconds.

Convert AVI files to MP4 online — works on Mac, Windows, iPhone, and Android. No software needed.

Max 1GB

3 conversions/day

3GB bandwidth/day

Start 14-day free trial for 5GB uploads

Works on Mac, Windows, Linux, iPhone, and Android — no download or install required.

Up to 1GB · 2GB with email

3 conversions/day

Free — no signup

Drag a AVI file here or click to select

File should not exceed 1GB

How to Use This Tool

Drag and drop your AVI file onto the upload area, or click to browse your files

Click "Convert to MP4" to start the conversion

Wait a few seconds while our servers process the file

Click "Download" to save your converted MP4

What is AVI?

AVI (Audio Video Interleave) is a legacy video container format developed by Microsoft in 1992. It was the dominant Windows video format through the 1990s and 2000s, and is still produced by older camcorders, DVD ripping tools, and some screen recorders. The core problem with AVI today: it doesn't open on Mac without extra software, won't play on iPhone or Android, and most modern streaming platforms and social networks don't accept it.

What is MP4?

MP4 (MPEG-4 Part 14) is the most universally supported video format in the world. It uses H.264 video and AAC audio, and plays on every modern device without extra software — Mac, iPhone, Android, Windows, smart TVs, and all major social platforms. MP4 also produces smaller file sizes than AVI at equivalent or better quality.

Why Convert AVI to MP4?

AVI files are a product of the early 1990s — and it shows. They don't open natively on Mac, require codec packs on Windows to play reliably, won't play on iPhone or Android at all, and get rejected by most social media upload tools. The files are also large because AVI uses inefficient compression compared to modern formats. Converting AVI to MP4 fixes all of this: you get a file that opens on any Mac or PC without extra software, plays natively on every phone, and uploads cleanly to any platform. Our converter handles all AVI codec variants — DivX, Xvid, MPEG-4 — and produces an MP4 using H.264 encoding that matches the original quality at a smaller file size. No account needed for files up to 1GB.

Key Features

Opens on Mac Without Extra Software

The output MP4 plays natively in QuickTime and Finder on any Mac — no codec installs needed

Handles All AVI Codec Variants

Converts AVI files encoded with DivX, Xvid, MPEG-4, and other legacy codecs

No Account for Files up to 1GB

Convert immediately without creating an account or entering your email

Smaller Output File Size

H.264 encoding produces a smaller MP4 than the original AVI at the same visual quality

Secure & Private

Files are transferred over SSL and automatically deleted from our servers after download

No Watermarks

Your converted MP4 is completely clean — no branding or logos added

Perfect For

Old Home Videos

DVD Rips

Legacy Camcorder Files

Mac Playback

iPhone & Android

Social Media Uploads

Video Editing Software

Archiving Old Content

Free Usage Limits

Free (No Account)

1GB

max file size

conversions per day

3GB

bandwidth per day

14-Day Free Trial

5GB

max file size

conversions per day

25GB

bandwidth per day

Start 14 Day Free Trial

14-day trial · cancel anytime

Frequently Asked Questions

How do I convert AVI to MP4 online?

How do I open an AVI file on a Mac?

Does converting AVI to MP4 lose quality?

Why is MP4 better than AVI?

Is the AVI to MP4 converter free?

Does this work with old camcorder AVI files?

How long does it take to convert AVI to MP4?

Does this work on Mac, Windows, iPhone, and Android?

Take Your Videos Further

Need more than just conversion? With vitelnk, you can embed your processed video on any website, add password protection, expiring links, viewer registration, and analytics.

Password Protection

Expiring Links

Viewer Registration

Video Analytics

Custom Branding

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14-day free trial · cancel anytime.

Privacy & Security

Your files are processed securely with SSL encryption and automatically deleted after download. We never store or share your files. All processing happens on our secure servers.