Crunchyroll Dual Subs

Tracking since May 5, 2026.

Changelog

• May 22, 2026
  description

  Crunchyroll Dual Sub (https://github.com/AndyNoob/crunchyroll-dual-subs)
  Web extension created to fix the annoying issue of not being able to use `English` and `English [CC]` subtitles at the same time. The extension is still in development but is guaranteed to work on shows such as One Piece where there are both types of subtitles. This extension supports Croptix (https://github.com/stratumadev/croptix) and Improve Crunchyroll (https://github.com/ThomasTavernier/Improve-Crunchyroll).
  
  How it works
  When the Crunchyroll watch page is loaded, the extension intercepts and reads your profile for your preferred/selected subtitle language and type (if you don't have one set via the dropdown). The extension then retrieves the episode's subtitle data in the same manner. The alternate subtitle will then be loaded by the extension.
  
  Additionally, the extension now adds a drop-down menu for you to select your desired secondary subtitle. The choice is saved for your selected profile to the sync-ed storage (if it is enabled). 
  
  Caveats
  While the extension is able to process most types of subtitle formats (Crunchyroll doesn't use a unified type of subtitle file), the rendering system is very limited. As such, it is recommended that you **choose the none-CC version** as your preferred/selected subtitle in the player. That way, the extension's renderer won't struggle displaying the more complicated typesettings (and trust me, it's not pretty). 
  
  Credits
  While not completely vibe-coded, this project was made with the help of GPT-5.3/5.5. This project uses frazy-parser (https://github.com/ApayRus/frazy-parser) by ApayRus (https://github.com/ApayRus) to parse subtitle files.

  Crunchyroll Dual Sub (https://github.com/AndyNoob/crunchyroll-dual-subs)
  Web extension created to fix the annoying issue of not being able to use `English` and `English [CC]` subtitles at the same time. The extension is still in development but is guaranteed to work on shows such as One Piece where there are both types of subtitles. This extension supports Croptix (https://github.com/stratumadev/croptix) and Improve Crunchyroll (https://github.com/ThomasTavernier/Improve-Crunchyroll).
  
  How it works
  When the Crunchyroll watch page is loaded, the extension intercepts and reads your profile for your preferred/selected subtitle language and type. The extension retrieves the episode's subtitle data in the same manner. The alternate subtitle will then be loaded and rendered accordingly by the extension.
  
  The extension adds a drop-down menu for you to select your desired secondary subtitle. The choice is saved for your selected profile to the sync-ed storage (if it is enabled). As of 0.10.0, a pop-up menu is provided by the extension for scoped preference control (per season, per episode, global). In the menu, you can apply an offset to the timing of both primary and secondary subtitles.
  
  Caveats
  As of version 0.10.0, the extension supports the rendering of non-CC subtitles.
  
  Privacy notice
  Everything stays on your computer/browser. The extension does not communicate with any external servers other than Crunchyroll's services.
  
  Credits
  While not completely vibe-coded, this project was made with the help of GPT-5.3/5.5. Prior to version 0.10.0, this project used frazy-parser by ApayRus to parse subtitle files. As of version 0.10.0, ASSJS by weizhenye is used to render ASS subtitles, and srt-vtt-parser by plussub is used to parse VTT subtitle files.

• May 10, 2026
  description

  Crunchyroll Dual Sub
  Web extension created to fix the annoying issue of not being able to use `English` and `English [CC]` subtitles at the same time. The extension is in early development but is guaranteed to work on shows such as One Piece where there are both types of subtitles. This extension supports Croptix(https://github.com/stratumadev/croptix).
  
  How it works
  When the Crunchyroll watch page is loaded, the extension intercepts and reads your profile for your preferred/selected subtitle language and type. The extension then retrieves the episode's subtitle data in the same manner. Finally, the extension determines the alternate subtitle and loads it. 
  
  Additionally, the extension now adds a drop down menu for you to select your desired secondary subtitle. The choice is saved for your selected profile to the sync-ed storage (if it is enabled). 
  
  Caveats
  While the extension is able to process most types of subtitle formats (Crunchyroll doesn't use a unified type of subtitle file), the rendering system is very limited. As such, it is recommended that you **choose the none-CC version** as your preferred/selected subtitle. That way, the extension's renderer won't struggle displaying the more complicated typesettings. 
  
  Credits
  While not completely vibe-coded, this project was made with the help of GPT-5.3/5.5. This project uses frazy-parser (https://github.com/ApayRus/frazy-parser) by ApayRus (https://github.com/ApayRus) to parse subtitle files.

  Crunchyroll Dual Sub (https://github.com/AndyNoob/crunchyroll-dual-subs)
  Web extension created to fix the annoying issue of not being able to use `English` and `English [CC]` subtitles at the same time. The extension is still in development but is guaranteed to work on shows such as One Piece where there are both types of subtitles. This extension supports Croptix (https://github.com/stratumadev/croptix) and Improve Crunchyroll (https://github.com/ThomasTavernier/Improve-Crunchyroll).
  
  How it works
  When the Crunchyroll watch page is loaded, the extension intercepts and reads your profile for your preferred/selected subtitle language and type (if you don't have one set via the dropdown). The extension then retrieves the episode's subtitle data in the same manner. The alternate subtitle will then be loaded by the extension.
  
  Additionally, the extension now adds a drop-down menu for you to select your desired secondary subtitle. The choice is saved for your selected profile to the sync-ed storage (if it is enabled). 
  
  Caveats
  While the extension is able to process most types of subtitle formats (Crunchyroll doesn't use a unified type of subtitle file), the rendering system is very limited. As such, it is recommended that you **choose the none-CC version** as your preferred/selected subtitle in the player. That way, the extension's renderer won't struggle displaying the more complicated typesettings (and trust me, it's not pretty). 
  
  Credits
  While not completely vibe-coded, this project was made with the help of GPT-5.3/5.5. This project uses frazy-parser (https://github.com/ApayRus/frazy-parser) by ApayRus (https://github.com/ApayRus) to parse subtitle files.

• May 10, 2026
  permissions

  storage, webRequest, tabs

  storage, webRequest

Permissions & access

Permissions

storagewebRequest

Host access

*://*.crunchyroll.com/*

Screenshots