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MP4 Converter

Convert your files to and from MP4for free.



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Auto
Choose a codec to encode or compress the video stream. To use the most common codecselect "Auto" (recommended). To convert without re-encoding videochoose "Copy" (not recommended).
No change
Choose how you want to adjust your video dimensions. If you select resolution or aspect ratiothe 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 ownor 'Copy' to replicate from the original file.
Choose a file Browse
Upload a .srt or .ass file.
Hard
Hardsubsalways visible and integrated into the videoare suitable for permanent captionswhile softsubsstored separatelycan be turned on or off for customized viewing.
Auto
Choose a codec to encode or compress the audio stream. To use the most common codecselect "Auto" (recommended). To convert without re-encoding audiochoose "Copy" (not recommended).
100% represents the original volume. To double the volumeincrease it to 200%. To reduce volume by halfselect 50%
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Specify the end position of trim (HH:MM:SS.MS). Leave at 00:00:00.00 to disable.
x
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 finishesclick the "Download MP4" button to save the file.

Convert Any File

FreeConvert supports more than 1500 file conversions. You can convert videosimagesaudio filesor 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 WindowsMacLinuxor 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 dropdownselect 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 usersthe QuickTime video player can easily play MP4 files. For Windows usersWindows Media Player can also play MP4 files. If your native video player can not play your MP4 videowe 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. Pluswe provide the most comprehensive and easy-to-understand Advanced Options which can help you fine-tune the MP4 conversion quality. For exampleyou can choose an advanced video codec like H.265 for better video quality and size savings. You can also adjust video qualityresolutionbitrateand much more.


Why can’t I play my MP4 file?

If you can not play the MP4 videoit could be corrupted (i.e. missing file chunks) or DRM protected. While these two issues can not be recoveredFreeConvert.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 datausually audio and video. It is compatible with a wide range of devices and operating systemsusing a codec to compress file sizeresulting in a file that is easy to manage and store. It is also a popular video format for streaming over the Internetsuch 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 Windowsit opens in Windows Media Player. On Macit opens in QuickTime.

 

On some devicesparticularly mobileopening this file type can be problematic. MP4 is a container that contains various kinds of dataso when there is a problem opening the fileit usually means that data in the container (an audio or video codec) is not compatible with the device’s OS. To resolve this issuetry 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 can convert your files to these related formats:


Your DataOur Priority

At FreeConvertwe go beyond just converting files—we protect them. Our robust security framework ensures that your data is always safewhether you're converting an imagevideoor document. With advanced encryptionsecure data centersand vigilant monitoringwe've covered every aspect of your data's safety.

Learn more about our commitment to security
  • SSL/TLS Encryption SSL/TLS
    Encryption
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    Centers
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    Authentication

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