The .mp21 file extension is related to the MPEG-21 a a normative open framework for end-to-end multimedia creation, delivery and consumption.

Detailed description

Software that open mp21 file

Add comment

MP21 file extension - MPEG-21 multimedia file

What is mp21 file? How to open mp21 files?

File type specification:

Digital video and movie file type icon Digital video and movie file type

The MP21 file extension is associated with the MPEG-21 standard, from the Moving Picture Experts Group, aims at defining an open framework for multimedia applications. The .mp21 file is a container used to store multimedia data.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .mp21 file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

Related links:

MPEG-21 Overview

List of recommended software applications associated to the .mp21 file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open mp21 file, edit mp21 file, convert mp21 file, view mp21 file, play mp21 file etc. (if exist software for corresponding action in's database).

mp21 file player - programs that play mp21 file - MPEG-21 multimedia file

Programs supporting the exension mp21 on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about QuickTime Player for Mac for play mp21 file action.

Apple macOS / Mac OS X:

Previous file extension
MP1V file extension > Digital video and movie file types

Next file extension
file extension MP2P


Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed