What is MP4?

MP4 (MPEG-4 Part 14) is a container format that holds video, audio, subtitle and metadata tracks in one file. It is a container, not a codec — the video inside is typically H.264 or H.265.

3 tools that work with MP4

Files never leave your browser.

Audio & Video Tools3

MP3 to M4A ConverterConvert MP3 audio into an M4A (AAC) file — smaller at the same quality.MP4 to MOV ConverterConvert MP4 video into a QuickTime MOV — usually without re-encoding.Video ConverterConvert video between MP4, WebM and MKV entirely in your browser.

Related terms

Terms that appear alongside MP4 on the same tools.

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