MP4 Converter

Convert your files to and from MP4, 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 to MP4?

  1. Click the “Choose Files” button to select your files.
  2. Convert to MP4 by clicking the "Convert" button
  3. Once the conversion finishes, click the "Download MP4" button to save the file.

Convert Any File

FreeConvert supports more than 1500 file conversions. You can convert videos, images, audio files, or e-books. There are tons of Advanced Options to fine-tune your conversions.

Best Quality

FreeConvert is an online file converter. So it works on Windows, Mac, Linux, or any mobile device. All major browsers are supported. Simply upload a file and select a target format.

Free & Secure

We know that file security and privacy are important to you. That is why we use 256-bit SSL encryption when transferring files and automatically delete them after a few hours.


How do I convert my videos to MP4 format?

  • 1. Select the video files that you want to convert to mp4 format
  • 2. From the Output dropdown, select MP4 as the target output
  • 3. Click Convert

How do I convert MP4 files to other formats?

  • 1. Select your MP4 files
  • 2. Select a target extension from the Output dropdown
  • 3. Click Convert

What programs can be used to play MP4 videos?

MP4 format is popular because it can be played on most devices or browsers. For Mac users, the QuickTime video player can easily play MP4 files. For Windows users, Windows Media Player can also play MP4 files. If your native video player can not play your MP4 video, we highly recommend the VLC Media Player. It is free to download/use and has better codec support.


What is the best way to convert to mp4 format?

FreeConvert.com’s MP4 Converter is the fastest and best way to convert to and from MP4 format. Simply upload your videos and click the Convert button to convert them to MP4 format. Plus, we provide the most comprehensive and easy-to-understand Advanced Options which can help you fine-tune the MP4 conversion quality. For example, you can choose an advanced video codec like H.265 for better video quality and size savings. You can also adjust video quality, resolution, bitrate, and much more.


Why can’t I play my MP4 file?

If you can not play the MP4 video, it could be corrupted (i.e. missing file chunks) or DRM protected. While these two issues can not be recovered, FreeConvert.com can still help you play your MP4 files by making them compatible with old devices (Enable this option after selecting H.264 codec from the Advanced Options).


How to convert MP4 at the highest quality?

We recommend using an advanced codec like H.265 or H.264 for encoding the video. Both codecs allow you to select a CRF value (video quality factor). Choose a lower CRF value for better video quality (at the expense of larger file sizes)


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

FreeConvert.com可以将您的文件转换为以下相关格式：


您的数据，我们的首要任务

在 FreeConvert，我们不仅提供文件转换服务，更致力于保护文件安全。无论您转换的是图像、视频还是文档，我们强大的安全框架都能确保您的数据始终安全无虞。凭借先进的加密技术、安全的数据中心和严密的监控，我们全方位保障您的数据安全。

详细了解我们对安全的承诺
  • SSL/TLS Encryption SSL/TLS
    加密
  • Secured Data Centers 安全数据
    中心
  • Access Control and Authentication 访问控制和
    验证

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