What is a .MP4 File?
MPEG-4 Video (.mp4) - Specifications, details, and free conversion tools.
Technical Details & Specifications
Format Name:
MPEG-4 Video
File Extension:
.mp4
Category:
Video
MIME Type:
video/mp4
Universal standard MPEG-4 video container utilizing H.264, H.265 (HEVC), or AV1 codecs.
How to Open .MP4 Files
Files with the .mp4 extension can typically be opened using modern web browsers, media players, or native system viewers. If your operating system cannot open this file, you can convert it to a universal format like MP4, MP3, JPG, or PDF using SnapConvert without installing additional software.