Why should I convert AVI files to MP4?

MP4 is a modern, widely supported format that works better across devices and streaming platforms, supports subtitles, multiple audio tracks, and advanced metadata that AVI lacks.

Will all my AVI video features transfer to MP4?

While MP4 supports many advanced features, some AVI-specific characteristics and metadata might not transfer fully due to differences in container capabilities.

Are there any codec restrictions for MP4 playback?

Yes, MP4 playback relies on codec support of the target device, and some codecs may require licenses due to patents.

Convert Your AVI Video to MP4 Format Easily Online

Learn how to convert AVI video files to the modern MP4 format for better compatibility, streaming, and sharing. Use this simple online converter for fast and reliable video format conversion.

Upload Your File | Maximum Size Upto 25MB

Quick Access To 38 AVI File Conversion Pairs

What Is This Tool?

This online converter allows you to transform AVI video files into MP4 format. AVI is a legacy Microsoft container format with limited metadata and file size constraints, while MP4 is a modern, widely supported container that works well across devices and supports advanced streaming features.

How to Use This Tool?

Upload your AVI video file from your computer or device to the converter.
Choose MP4 as the output format for your video conversion.
Click the convert button and wait for the tool to process the file.
Download the converted MP4 video once the process is complete.
Play or share your MP4 video on compatible devices and platforms.

Key Features

Convert legacy AVI videos into the MP4 format for wider compatibility.
Support for multiple audio tracks, subtitles, and metadata in MP4 output.
Fast and easy-to-use web interface—no software installation required.
Produce MP4 files optimized for playback on desktops, mobiles, and streaming platforms.
MP4 output supports fragmented streaming and metadata for chapters and subtitles.

Examples

Convert a camcorder-recorded AVI video to MP4 for uploading to a video-on-demand platform.
Repackage legacy AVI footage into MP4 format with embedded subtitle tracks for streaming.
Transform archived AVI videos into MP4 to enable smooth playback on modern mobile devices.

Common Use Cases

Preparing old AVI videos for web and mobile streaming compatibility.
Creating MP4 files with multiple audio and subtitle tracks for enhanced viewing experience.
Archiving and sharing video projects using a standardized, flexible container format.
Facilitating progressive download and adaptive streaming via MP4's fragmented delivery.

Tips & Best Practices

Check codec compatibility on your target playback device to ensure MP4 files play correctly.
Include subtitles and chapter metadata when repackaging videos to enrich user experience.
Avoid uncompressed streams for MP4 files to keep file sizes manageable.
Use this conversion tool to migrate legacy footage for better editing and sharing options.

Limitations

MP4 playback depends on codec support; some files may not play on all devices if unsupported codecs are used.
Certain MP4 codecs may require licensing due to patent restrictions.
Conversion might not transfer all advanced AVI features exactly due to container differences.
Original AVI files have a 4 GB size limit which may affect very large video content.

Frequently Asked Questions

Why should I convert AVI files to MP4?: MP4 is a modern, widely supported format that works better across devices and streaming platforms, supports subtitles, multiple audio tracks, and advanced metadata that AVI lacks.
Will all my AVI video features transfer to MP4?: While MP4 supports many advanced features, some AVI-specific characteristics and metadata might not transfer fully due to differences in container capabilities.
Are there any codec restrictions for MP4 playback?: Yes, MP4 playback relies on codec support of the target device, and some codecs may require licenses due to patents.

Key Terminology

AVI (Audio Video Interleave): A legacy Microsoft container format that stores interleaved audio and video streams, often used in older Windows applications but limited in metadata and file size.
MP4 (MPEG-4 Part 14): A modern ISO Base Media File Format container used for audio, video, subtitles, and metadata, widely supported across devices and optimized for streaming.
Codec: A technology or software used to encode and decode digital video or audio streams in a file format.

Quick Knowledge Check

What is a primary advantage of converting AVI to MP4?

MP4 files always have smaller size than AVI.

MP4 has broader device and web compatibility and supports metadata better.

AVI supports adaptive streaming better than MP4.

Which container format is known for a 4 GB file size limit?

MP4

AVI

Both MP4 and AVI

What must be considered regarding MP4 codec usage?

Codec patents and licensing requirements.

MP4 does not support subtitles.

MP4 automatically converts all codecs without issue.