MP4 (MPEG-4 Part 14)

MP4 is the dominant video container format on the internet, used by YouTube, streaming services, and virtually every device with a screen. It combines H.264 or H.265 video with AAC audio, supports subtitles, chapters, and metadata in a flexible MPEG-4 Part 14 container.

MIME Type

video/mp4

Type

Binary

Compression

Lossy

Advantages

+ Universal playback on browsers, phones, TVs, and consoles
+ Supports H.264, H.265, AV1, AAC, subtitles, and chapters
+ Streamable — can start playback before download completes
+ Excellent compression efficiency with modern codecs

Disadvantages

− Container flexibility means codec support varies by player
− Some codecs (H.265, AAC) have licensing fees
− Not ideal for editing — use ProRes or DNxHR for production

When to Use .MP4

Use MP4 for web video, mobile content, social media uploads, and any video that needs broad device compatibility.

Technical Details

MP4 uses the ISO Base Media File Format (ISOBMFF) with 'atoms' (boxes) organized hierarchically. The moov atom contains metadata and track info, while mdat holds the actual compressed media data.

History

MP4 was standardized as ISO/IEC 14496-14 in 2003, building on Apple's QuickTime container. It became the de facto web video standard with the rise of H.264 and HTML5 video.

Convert from .MP4

.mp4 → .3gp .mp4 → .aac .mp4 → .apng .mp4 → .avi .mp4 → .flac .mp4 → .flv .mp4 → .gif .mp4 → .jpg .mp4 → .m4v .mp4 → .mkv .mp4 → .mov .mp4 → .mp3 .mp4 → .mpeg .mp4 → .mpg .mp4 → .mts .mp4 → .mxf .mp4 → .ogg .mp4 → .ogv .mp4 → .png .mp4 → .vob .mp4 → .wav .mp4 → .webm .mp4 → .webp .mp4 → .wmv

Convert to .MP4

.3gp → .mp4 .aac → .mp4 .apng → .mp4 .avi → .mp4 .flac → .mp4 .flv → .mp4 .gif → .mp4 .jpg → .mp4 .m4v → .mp4 .mkv → .mp4 .mov → .mp4 .mp3 → .mp4 .mpeg → .mp4 .mpg → .mp4 .mts → .mp4 .mxf → .mp4 .ogg → .mp4 .ogv → .mp4 .png → .mp4 .vob → .mp4 .wav → .mp4 .webm → .mp4 .webp → .mp4 .wmv → .mp4

Related Formats

.3gp .avi .flv .m4v .mkv .mov .mpeg .mpg .mts .mxf .ogv .vob .webm .wmv

Related Terms

Container Format

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