Convert AVI to MP4 Online — Free & Fast | AnyConv

AVI to MP4 Converter

Quickly convert multiple avi files to mp4 — free & online.

Drag & drop your files here or click to upload

How to convert AVI to MP4 online

Follow these simple steps to convert avi files to mp4 using AnyConv. It works on all devices — Windows, Mac, Linux, iPhone, Android.

Upload your AVI file

Drag & drop your file into the upload area. You can also click to select it manually. Max file size: 100 MB.

Start converting

Hit the “Convert” button to turn your AVI into MP4. The process usually takes just a few seconds.

Download your MP4

Once ready, download your converted file instantly. The download link is private and only works on your device.

What is a AVI file?

AVI (Audio Video Interleave) is a multimedia container format introduced by Microsoft. It can store both video and audio data in a single file and supports a variety of codecs.

Although an older format, AVI is still widely supported and used for video playback, editing, and sharing. However, its larger file sizes and limited support for newer features make it less efficient than modern formats.

How to open AVI files

AVI files are compatible with nearly all media players, including VLC, Windows Media Player, and QuickTime (with codecs). They are widely used in both editing and playback.

You can convert AVI to MP4 or MKV using AnyConv for improved compression and compatibility.

Key facts about AVI

  • Full name: Audio Video Interleave
  • Extension: .avi
  • MIME type: video/x-msvideo
  • Developed by: Microsoft
  • Initial release: 1992

Useful links and resources

What is a MP4 file?

MP4 (MPEG-4 Part 14) is one of the most widely used video container formats in the world. It supports high-quality video and audio, subtitles, and still images in a compact file size.

MP4 is ideal for streaming, downloading, and sharing content across nearly all devices and platforms, making it a universal standard for video.

How to open MP4 files

MP4 is universally supported by nearly every media player, browser, and mobile device. It works on Windows, macOS, iOS, Android, and Linux without the need for additional codecs.

Use AnyConv to convert MP4 to other formats like AVI, MOV, or MKV depending on your needs.

Key facts about MP4

  • Full name: MPEG-4 Part 14
  • Extension: .mp4
  • MIME type: video/mp4
  • Developed by: ISO/IEC
  • Initial release: 2001

Useful links and resources

❓ Frequently Asked Questions

Answers to common questions about converting AVI to MP4
  • Do I need to register to convert AVI files?
    Not at all! You can convert AVI to MP4 without signing up or installing anything.
  • Is it safe to convert AVI to MP4 on AnyConv?
    Absolutely. All AVI and MP4 files are securely handled and automatically deleted after 1 hour. Nobody can access your data.
  • Will the quality change after converting AVI to MP4?
    We do our best to preserve the original quality during AVI to MP4 conversion. The result is accurate and clean.
  • How long does it take to convert AVI to MP4?
    Most conversions from AVI to MP4 take just a few seconds — even for larger files.
  • Can I upload more than one AVI file?
    Yes, batch conversion is supported. You can convert multiple AVI files to MP4 at once — fast and easy.
  • What browsers support AVI to MP4 conversion?
    All modern browsers! Chrome, Firefox, Safari, Edge — AnyConv runs online and supports converting AVI to MP4 on any platform.
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