.SUB File Extension

File Type:
Subtitle File

Having trouble opening .sub extension? Don't panic! This page explains what sub files are as well as suggests programs you may use to open sub files. You can download these programs through this page.

What is a SUB file?

Sub file extension has Subtitle file type, which is associated with the "text files" category.

Used by various movie formats, such as MicroDVD or DivX, the file contains subtitle text. It may also save cue points for displaying different subtitles at specific time.

.SRT files, which use the SubRip format, may be used for the same purpose.

To learn how you can open the given file, read the information below.

sub file icon
File Type:
Subtitle File
Text Files

How to open SUB file?

Double click the sub file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .sub extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the sub extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the sub file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open SUB files

  • Windows Windows
  • MacOS MacOS
  • Linux Linux
    • MPlayer MPlayer
    • Gnome Subtitles Gnome Subtitles
    • KSubtile KSubtile
    • Any text editor Any text editor
  • iOS iOS
    • olimsoft OPlayer olimsoft OPlayer
  • Android Android
    • J2 Interactive MX Player J2 Interactive MX Player

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the sub file as well. Download Universal File Viewer for your OS.

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