IDX File - opening and understanding

Did your computer fail to open an IDX file? We explain what they are used for and recommend software that we know can open or otherwise handle your .IDX files.

What is an IDX file?

Files that contain the .idx file extension are created by a number of DVD playback applications. These files contain information about the subtitles of a DVD, including the subtitle text and start points for when the subtitles should be shown. The IDX file does not contain any actual video data. The video data is contained in an associated video file that is linked to the appropriate IDX file.

The .idx extension is also given to index files. These files contain indexes to database files in order to help speed up the data requests that are sent to a computer database. Some applications that use .idx file extension for index files include Corel WordPerfect, Microsoft Outlook and Quicken.

How to open IDX files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension IDX for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 10 different IDX openers which you will find listed below.

Suggest another file format using extension IDX

While we know of one file format using the .IDX file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .IDX file.

Various viewers for this file format

These apps are known to open certain types of IDX files. Remember, different programs may use IDX files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Final Media PlayerFinal Media PlayerUser submitted
Free File ViewerFree File ViewerUser submitted
WinRARWinRARUser submitted
KMPlayerKMPlayerUser submitted
PotPlayerPotPlayerUser submitted
ChocoPlayerChocoPlayerUser submitted
ALShowALShowUser submitted
RealPlayerRealPlayerUser submitted
ALPlayerALPlayerUser submitted
PotplayerBitsPotplayerBitsUser submitted
We have not verified any software that we know for certain will work with IDX-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with IDX-files. If you know one, please use the 'Suggest a program' link below and tell us about it!