AVI to MP4 Converter

Convert AVI to MP4 online, for free.



选择文件
  • 从设备
  • 来自 Dropbox
  • 来自 Google Drive
  • 从 OneDrive
  • 来自网址
最大文件大小 1GB. 升级更多 报名 了解更多

继续操作即表示您同意我们的使用条款。


Auto
Choose a codec to encode or compress the video stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding video, choose "Copy" (not recommended).
No change
Choose how you want to adjust your video dimensions. If you select resolution or aspect ratio, the original video's width will be used to calculate the new height according to the chosen aspect ratio.
No change
Change FPS (frames per second) of video
None
Video will be rotated clockwise.
No change
Upload
Select the best option for your subtitles: 'Upload' to add your own, or 'Copy' to replicate from the original file.
选择一个文件 浏览
Upload a .srt or .ass file.
Hard
Hardsubs, always visible and integrated into the video, are suitable for permanent captions, while softsubs, stored separately, can be turned on or off for customized viewing.
Auto
Choose a codec to encode or compress the audio stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding audio, choose "Copy" (not recommended).
100% represents the original volume. To double the volume, increase it to 200%. To reduce volume by half, select 50%
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Specify the start position of trim (HH:MM:SS.MS). Leave at 00:00:00.00 to disable.
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Specify the end position of trim (HH:MM:SS.MS). Leave at 00:00:00.00 to disable.
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Enter crop rectangle's width and height in pixels (0 - 10000). Odd dimension numbers will be rounded down to the nearest even number.
Enter the x-coordinate of the crop rectangle's top left position
Enter the y-coordinate of the crop rectangle's top left position.


How to Convert AVI to MP4?

  1. Click the “Choose Files” button to select your AVI files.
  2. Click the “Convert to MP4” button to start the conversion.
  3. When the status change to “Done” click the “Download MP4” button

Easy to Use

Simply upload your AVI files and click the convert button. You can also batch convert AVI to MP4 format.

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our AVI to MP4 Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically delete after a few hours.


Audio Video Interleave (AVI) is a multimedia container developed by Microsoft. AVI is a descendant of the Resource Interchange File Format (RIFF). With the assistance of third-party programs, AVI can support chapters, captions, subtitles, menus, streaming, attachments, and 3D containers.

 

How to open an AVI file?

Microsoft provides a downloadable and free AVI Viewer. Another way to view an AVI file is to use a version of Microsoft Windows Media Player that is compatible with the operating system.

 

While AVI files are optimized for the Internet, hardware players support them as well. If an AVI file does not open, then use VLC media player.

 

Developed by: Microsoft

Initial release: 1992

Useful links:

https://en.wikipedia.org/wiki/Audio_Video_Interleave

https://tools.ietf.org/html/rfc2361


MPEG-4 (MP4) is a container video format that can store multimedia data, usually audio and video. It is compatible with a wide range of devices and operating systems, using a codec to compress file size, resulting in a file that is easy to manage and store. It is also a popular video format for streaming over the Internet, such as on YouTube. Many consider MP4 to be one of the best video formats available today.

 

How to open an MP4 file?

MP4 files open in the operating system's default video player. Simply double-clicking the file opens it. There is no need for third-party software. On Windows, it opens in Windows Media Player. On Mac, it opens in QuickTime.

 

On some devices, particularly mobile, opening this file type can be problematic. MP4 is a container that contains various kinds of data, so when there is a problem opening the file, it usually means that data in the container (an audio or video codec) is not compatible with the device’s OS. To resolve this issue, try VLC media player.

 

Developed by: Moving Picture Experts Group (MPEG)

Standard: ISO/IEC 14496

Initial release: 1999

Useful links:

https://en.wikipedia.org/wiki/MPEG-4

https://mpeg.chiariglione.org/standards/mpeg-4.html


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