M4V Video — MPEG-4 video container, often with DRM from iTunes.
Quick facts
What is .m4v
A .m4v file is a M4V Video — MPEG-4 video container, often with DRM from iTunes.
In the mime-db registry it maps to video/x-m4v. When serving .m4v over HTTP, set the Content-Type header as shown in Developer info below.
Related entities: it maps to video/x-m4v — and is delivered over HTTP via the Content-Type header.
How to open .m4v files
Developer info
When served over HTTP, responses should set the following header:
Content-Type: video/x-m4v
Common software that reads/writes .m4v:
Relation chain
Related extensions
Related MIME types
Common uses
How to edit .m4v files
How to create .m4v files
Frequently asked questions
Common options include QuickTime, VLC, iTunes. You can also open many of these files with built-in viewers or a browser.
Create a new file in any text editor or the app that owns the format and save it with the .m4v extension.
video/x-m4v is the media type identifier used for .m4v files during network transfer (for example in the HTTP Content-Type header).
Sources & standards
Updated 2026-08-18
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