At One Place

.mp4 files

.mp4 file
MPEG-4 Part 14 Video
The default video container for phones, cameras, streaming and everything else.

What opens a .mp4 file

Windows
Media Player (built in), VLC, Any web browser
macOS
QuickTime Player (built in), VLC, IINA
Linux
Videos / Totem (built in), VLC, mpv
In a browser
Any web browser

What a .mp4 file is

MP4 is an ISO standard container, derived from Apple's QuickTime format, that normally holds H.264 or H.265 video with AAC audio. It plays on every phone, TV, browser and editing program without extra software, which is why it is the safe answer for sharing video. The extension says nothing about the codec inside, so a rare MP4 using an unusual codec can still refuse to play in a basic player while working fine in VLC.

Converting it

A .mp4 file is commonly converted to .mkv, .mov, .webm, .avi, .mp3 or .gif. It is a binary format, so a text editor will show unreadable characters rather than its contents.

Details

Extension
.mp4
Full name
MPEG-4 Part 14 Video
Category
Video
MIME type
video/mp4
Created by
ISO/IEC (MPEG)
Format
Binary

Common questions

How do I open a .mp4 file?
On Windows use Media Player (built in); on macOS use QuickTime Player (built in); on Linux use Videos / Totem (built in). The default video container for phones, cameras, streaming and everything else.
What is a .mp4 file?
MPEG-4 Part 14 Video. MP4 is an ISO standard container, derived from Apple's QuickTime format, that normally holds H.264 or H.265 video with AAC audio. It plays on every phone, TV, browser and editing program without extra software, which is why it is the safe answer for sharing video.
Can I convert a .mp4 file?
Yes. It is usually converted to .mkv, .mov, .webm, .avi, .mp3 or .gif, either by exporting from one of the programs listed above or with a format converter.

Related pages

Sources

  1. Media Types Registry — IANA
  2. Official vendor product documentation — At One Place

How these figures are compiled and checked