MP4
MPEG-4 videoWidely compatible web and device video
- Family
- Video
- MIME
- video/mp4
Upload a MP4 file, choose an output such as 3GP, AAC, AIFF or ALAC, and download the result. MP4 is the most compatible video container, usually carrying H.264 or H.265 video with AAC audio.
A MP4 source is a broadly supported MPEG-4 container written here with H.264 video and AAC audio when those streams exist. Its useful destination depends on which stored properties the receiving workflow actually consumes.
Working with a related format? See the WebM video conversion options and the Matroska video conversion options.
Widely compatible web and device video
Confirm the specific program, device, or platform on the other end before picking an output format.
Video playback depends on two separate things: the container format and the codecs packed inside it. Picture, sound, captions, chapters, and metadata all ride along, and any of them can fail independently.
a broadly supported MPEG-4 container written here with H.264 video and AAC audio when those streams exist
An audio-only source does not gain pictures, and ancillary streams such as captions may not carry over.
Test playback, seeking, audio sync, dimensions, and whether the expected video stream actually exists.
These are working MP4 conversion paths, not a placeholder link list.