Convert MP4 to AVI

MP4 to AVI converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Converting MP4 to AVI is a step back in time — useful only when the target is an old DVD/DivX player, a legacy editing suite, or an embedded Windows system that predates MP4. Files grow larger and you lose modern features like a streaming-friendly structure, so keep the MP4 as your master copy.

Conversions

About formats

MP4

MP4 (MPEG-4 Part 14) is a digital multimedia container format standardized by the Moving Picture Experts Group (MPEG). It stores video, audio, subtitles, and still images in a single file and is the most widely used format for streaming and sharing video across the web, mobile devices, and living-room hardware. MP4 offers an excellent balance between compression efficiency and quality, typically using the H.264 or H.265 (HEVC) video codec together with AAC audio. Its near-universal support makes it the default choice for social media platforms, browsers, phones, and modern TVs.

Developer
ISO/IEC (MPEG)
Initial release
2001
Compression
Lossy
Color depth
up to 12-bit HDR
Transparency
No
Animation
Yes

Best for

  • Sharing videos on social media
  • Streaming video over the web
  • Playback on phones and tablets
  • Storing H.264 or HEVC video
  • Distributing downloadable video clips

Pros

  • +Near-universal support across devices and browsers
  • +Excellent compression-to-quality ratio
  • +Supports subtitles, chapters, and metadata
  • +Hardware-accelerated decoding on most devices

Cons

  • −Patent-encumbered H.264/HEVC codecs
  • −Not ideal for lossless archival
  • −Editing streams can require re-muxing

AVI

AVI (Audio Video Interleave) is one of the oldest and most recognized multimedia container formats, introduced by Microsoft in November 1992 as part of its Video for Windows technology. Built on the Resource Interchange File Format (RIFF) structure, AVI interleaves audio and video data in alternating chunks, allowing synchronized playback without requiring sophisticated stream management. The format is codec-agnostic, meaning it can hold video compressed with virtually any codec, from early Cinepak and Indeo to modern DivX, Xvid, and H.264 streams. This flexibility contributed to widespread adoption across personal computers throughout the 1990s and 2000s. AVI supports multiple audio streams, enabling multilingual content within a single file. Despite being decades old, AVI remains one of the most universally recognized multimedia formats and is still widely supported by media players and editing tools across all major operating systems.

Developer
Microsoft
Initial release
November 10, 1992
Compression
Lossy
Color depth
up to 10-bit
Transparency
No
Animation
Yes

Best for

  • Archiving legacy video footage
  • Editing in older video software
  • Storing multiple audio tracks
  • Playback on classic media players
  • Cross-codec video container use

Pros

  • +Codec-agnostic — accepts nearly any video codec
  • +Supports multiple audio streams for multilingual content
  • +Universally recognized by media players and editors
  • +Simple RIFF chunk structure easy to parse

Cons

  • −No modern streaming or chapter metadata support
  • −Files tend to be large with inefficient codecs
  • −No built-in subtitle standard
  • −Lacks DRM and modern container features

How to convert MP4 to AVI

  1. 1

    Select MP4 files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.

  2. 2

    Choose avi — or any other format you need as a result (more than 200 formats supported).

  3. 3

    Let the file convert, then download your avi file right away.

MP4 vs AVI

PropertyMP4AVI
CompressionLossyLossy
Color depthup to 12-bit HDRup to 10-bit
Multi-trackYesYes
DRM supportYesNo
Open formatNoNo

When to use MP4 vs AVI

MP4

  • Sharing videos on social media
  • Streaming video over the web
  • Playback on phones and tablets
  • Storing H.264 or HEVC video
  • Distributing downloadable video clips

AVI

  • Archiving legacy video footage
  • Editing in older video software
  • Storing multiple audio tracks
  • Playback on classic media players
  • Cross-codec video container use

Use cases for MP4 → AVI

  • Sharing videos on social media
  • Streaming video over the web
  • Playback on phones and tablets
  • Storing H.264 or HEVC video
  • Distributing downloadable video clips
  • Archiving legacy video footage
  • Editing in older video software
  • Storing multiple audio tracks
  • Playback on classic media players
  • Cross-codec video container use

Frequently Asked Questions

Is converting MP4 to AVI free?
Yes. This MP4 → AVI converter runs entirely in your browser and is completely free — no account, no credits, no watermark.
Which devices and platforms can I use to convert MP4 to AVI?
Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.
Are my MP4 files uploaded to a server?
No. Files never leave your device. The entire MP4 → AVI conversion runs locally in your browser, so your data stays private.
Can I convert multiple MP4 files at once?
Yes — batch conversion is supported. Add as many MP4 files as you like and convert them to AVI in one pass, then download the results together.
What is the maximum file size?
There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.
Will converting MP4 to AVI reduce the quality?
Because both formats use lossy compression, the AVI output will not bring back any quality that has already been lost in your MP4 file. Avoid repeated re-encoding to keep the best quality.
Does AVI support transparency?
No — AVI has no alpha channel. Transparent areas of your MP4 file will be filled with a solid background colour in the converted file.
How will the file size change after converting MP4 to AVI?
Both formats use comparable compression, so the AVI output will be similar in size to your MP4 file — typically within 10–20% of each other.

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FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

Convert MP4 to AVI Quality Rating

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