How to Use Subtitles on Plex: Everything You Need to Know

Dan Price 29-08-2017

The ability to add subtitles to a video How to Add Subtitles to a Movie or TV Series Here's how to add subtitles to movies or TV shows when watching on your computer. It's quick, easy, and free to do! Read More is an essential part of any worthwhile media player.


There are lots of reasons why you might want to add subtitles. Of course, some of the best movies and TV shows in the world won’t be in your native tongue, but subtitles can also be useful if you’re trying to learn a foreign language 6 Snappy Ways to Learn a New Language in 5 Minutes a Day You can get a lot done in the few minutes of free time you have. Learning a new language with microlearning is one of them. Try these excellent apps and websites for microlearning. Read More .

You might even want to add subtitles in the same language as the audio if the content includes broad accents or periods of quiet speech, or if you have hearing problems.

Unsurprisingly, Plex supports several subtitle solutions, but they’re all disabled “out of the box.” Here’s everything you need to know about using subtitles on Plex.

Automatically Download Free Subtitles

Let’s assume you don’t have any locally-saved subtitles files, or at least, the majority of your content doesn’t have accompanying subtitles. You need to source your subtitles from a third-party provider.

Using a media scraping agent, Plex can pull subtitles from OpenSubtitles.org for free. You just need to set the process in motion.


To begin, go to Settings > Server > Agents. Using the tabs at the top of the page, navigate to Movies > Plex Movie. Find OpenSubtitles.org and drag it to the top of the list.

Your list should now look like this:

plex subtitles opensubtitles

Next, go back to the tabs at the top of the screen, but this time head to Shows > TheTVDB. Again, drag OpenSubtitles.org to the top.


Making these changes ensures Plex prioritizes downloading subtitles when you add new content to your library.

To tell Plex which languages you desire, you need to edit the agent’s settings. On the same screen, click the gear icon next to OpenSubtitles.org. If you have an account on the site, you can enter your username and password. It’s not essential for the tool to work.

You can specify up to three languages using the drop-down boxes. As you can see in the image below, I want Spanish and English subtitles.

plex opensubtitles setup


Adding Subtitles to Your Existing Shows

The changes you’ve just made to the media scraping agent will only work for any new content added to your library.

If you’re just starting your media collection that’s fine, but in most cases, you’ll probably want to retrospectively add subtitles to your existing TV shows and movies.

To do so, you need to refresh your library’s metadata. Locate the library you want to refresh in the list on the left-hand side of the Plex homescreen. Click the three horizontal dots to access the context menu, then select Refresh All Metadata.

plex refresh metadata


If you have an extensive library, the process could take a long time. So if you’re in a hurry to get subtitles on one show (or one episode), navigate to the video in question, click the three horizontal dots in the bar at the top of the screen, and click Refresh Metadata.

Adding Local Subtitle Files

OpenSubtitles.org has a vast number of free subtitle files, but it doesn’t have everything. If the subtitles file is missing for one of your favorite shows, you might have to locate it elsewhere.

Subscene, SubtitleSeeker, and SRTFiles are three of the best places to check out. We covered other sources for subtitles Download Subtitles for Movies for Free: The 3 Best Sites Subtitles elevate the viewing experience, but where can you get quality subtitles for free? We recommend these subtitle sites. Read More in a previous article. Plex supports subtitles in five formats: SRT, SMI, SSA, ASS, and WebVTT. Formats such as VOBSUB and PGS will only work on some Plex players and should be avoided if at all possible.

Once you’ve downloaded the files you need, save them in the same directory as the media for which they are applicable. For example, on my server, I would save the subtitles file for Series 1, Episode 1 of Red Dwarf in E:\TV\Red Dwarf\Season 01.

You also need to name your subtitles files The Optimal Way to Name Media Files on Plex Read More in a precise way:

  • Movies: Movie_Name (Release Date).[Language_Code].[ext]
    • e.g. Cool Runnings (1993).es.srt
  • TV shows: Show_Name SxxEyy.[Language_Code].[ext]
    • e.g. Red Dwarf S01E01.es.srt

The language code needs to follow either the international standard.

To complete the process, scan your library (Context menu > Scan Library Files). Plex should find the subtitles files and link them to the associated videos.

Check Which Subtitles Are Available

Once you’ve worked through all the steps we’ve detailed so far, you might want to check whether they’ve actually worked.

To see which subtitles are available for a certain TV episode or movie, navigate to its Plex page. If adding subtitles has been successful, you’ll see all of the languages listed (expand the drop-down menu to see the full list).

plex subtitles available

Click on a language to override the system-wide settings (discussed below) and set the language file as the default for that particular video.

Turning Subtitles On

Great, so now you’ve got all the subtitles files you need. But how do you watch them? This is where you’ll finally start to see the fruits of your labor.

If you’re planning to use subtitles most of the time, it makes sense to tweak Plex’s settings so that they’re switched on by default.

Go to Settings > Server > Languages. Disable the checkbox next to Automatically select audio and subtitle tracks, and you’ll be able to edit the settings underneath.

plex subtitle preferences

For the purposes of this process, we’re interested in Subtitle mode and Prefer subtitles in. Set the prior to Always On, and the latter to the language of your preference. Click Save Changes to complete the process.

Turning Subtitles on During Playback

Perhaps you don’t want subtitles to be on permanently. After all, if you’re not using them, they can get annoying. But don’t worry; it’s equally easy to manage subtitles on a video-by-video basis.

subtitles plex

Once your video is playing, click on the speech bubble in the top right-hand corner. In the drop-down menu, you’ll see a list of all the subtitles files you have available for the video in question.

Click on a language to activate the file.

Do You Use Subtitles on Plex?

Admittedly, it sounds like a lot of work to get subtitles up and running on Plex. But you only have to do it once and you’ll then have access to subtitles on all of your shows for as long as you use the app.

Are you happy to let Plex do the legwork, or do you prefer to burn in subtitles How to Create & Burn Your Own Video Subtitles for Free Here we cover how to create and sync your own "soft" subtitles for any video, and how to burn those subtitles directly into any video to create "hard" subtitles. Read More using an app like Handbrake before you add the video files to your library? As always, you can leave your thoughts and opinions in the comments below.

Related topics: Media Server, Plex.

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  1. Claudio
    May 17, 2019 at 12:56 pm

    Hi! Great article

    My question is how I need to name .srt files to be recognized by the same Movie or TVShow.

    Often, there is just one .srt file among a few that syns correctly.
    Rather than going back and forth renaming them and testing them I would like to just pic each one and test it. (I know I may advance/delay the sync within Plex, but this is not what I am looking for)

    Thank you

  2. John
    January 21, 2018 at 4:45 am

    can not seem to lnk to opensubtitles.org. When go to settings and server, there is no agent section? have tried plex app android box and firefox browser on android box.

  3. Cailey
    November 10, 2017 at 3:30 am

    Can you address what to do if the automatically downloaded subtitles are wildly out of sync?

  4. X
    August 29, 2017 at 7:51 pm

    There is a plex plugin called subzero, which supports downloading subtitles from many different sources. It is highly customizable and although fully automated, it let's the user hand pick subtitles to download from lists if needed.

    The issue with plex's built in subtitles is that it searches automatically when media is added. If there are no subtitles at that time, it won't search again unless the user manually initiates a search. Subzero keeps searching for subtitles for a period until it finds one.

    • White_King
      March 10, 2018 at 3:44 am

      Thanks, I'll check on that to

  5. david
    August 29, 2017 at 2:57 pm

    Thank you!
    Most helpful, finally PLEX explained for the normal user!

    More please :-)