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Free online H264 to MP4 converter

Converting .h264 videos to .mp4 format.

Convert H264 to MP4 online - free

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How to convert h264 to mp4 file

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Converting H.264 Encoded Video Files directly to MPEG-4 Videos (.h264 to .mp4 conversion) should be possible and quite straightforward.

Use one of several video editing programs or (online) conversion tools, such as the Freemake Video Converter or Adapter, which allow users to import H264 videos and re-save them in MP4 format.

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Understanding H264 and MP4 file formats

The H264 format is a popular video compression standard used for recording, compression, and distribution of video content. It is known for its high-quality video output and efficient compression, making it ideal for streaming and broadcasting. However, H264 is not a standalone file format; it is typically encapsulated within a container format like MP4.

The MP4 format, or MPEG-4 Part 14, is a digital multimedia container format most commonly used to store video and audio. It can also contain other data such as subtitles and still images. MP4 is widely supported across various platforms and devices, making it a versatile choice for video playback and distribution.

Converting H264 to MP4

Converting H264 to MP4 involves encapsulating the H264 video stream into an MP4 container. This process does not typically involve re-encoding the video, which means there is no loss in quality. The conversion is mainly about changing the file format to make it more compatible with different devices and media players.

Best software for H264 to MP4 conversion

One of the best software options for converting H264 to MP4 is HandBrake. HandBrake is a free, open-source video transcoder that supports a wide range of formats. It is available for Windows, macOS, and Linux.

To convert H264 to MP4 using HandBrake, follow these steps:

  • Open HandBrake and click on File to import your H264 file.
  • Select the Format as MP4 from the Summary tab.
  • Choose your desired settings for video quality and audio tracks.
  • Click on Start Encode to begin the conversion process.

Another excellent tool is FFmpeg, a command-line based software that is highly versatile and powerful for video and audio processing. It is also free and open-source.

To convert using FFmpeg, use the following command:

ffmpeg -i input.h264 -c:v copy -c:a copy output.mp4

This command copies the video and audio streams into an MP4 container without re-encoding.


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H264 vs MP4: format comparison

How the H264 and MP4 formats compare on the properties that matter most for this conversion.

Comparison of the H264 and MP4 file formats
Property .H264 H.264 video bitstream .MP4 MPEG-4 Part 14
Format type Codec Container
Compression Lossy Both
Maximum resolution 8K and above 8K and above
Audio tracks None Multiple
Subtitles Not supported Embedded in the file
Streaming Partial Partial
Opens in a web browser Partial Yes, natively
Typical file size Small Small
Open standard Yes Yes
Introduced 2003 2001
Developer ITU-T / ISO/IEC Moving Picture Experts Group (ISO/IEC)
MIME type video/H264 video/mp4

Information about file extensions and file types is provided by File-Extensions.org

Frequently asked questions

Is the H264 to MP4 converter free?

Yes, converting H264 to MP4 on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.

How large can my H264 file be?

You can upload H264 files up to 30 MB and convert up to 1 files at once in a single batch. With a paid plan the limit is up to 2000 MB per file and 1 files at once, see our plans.

What happens to my uploaded files?

Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.

Do I need to install any software to convert H264 to MP4?

No. The H264 to MP4 conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.

Did the conversion fail?

In most cases, the cause is an incorrect file format. Please upload a valid H264 file for this H264 to MP4 conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.

Additional formats for
h264 file conversion

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