Substital

Add subtitles to any video or movie online. Be it on Netflix, Disney+, Youtube or any other online streaming platform.
What is Substital?
Substital is a user-friendly Firefox add-on designed to facilitate adding subtitles to various video streaming platforms. Be it Netflix, Disney+, Amazon Prime, Vimeo, Youtube, or other websites, Substital aims to bridge the language gap for entertainment, language learning, or accessibility purposes. It allows users to search for, add, and manually sync subtitles for a better viewing experience. It is completely free, without ads, and requires activation by the user when adding subtitles to a video.

Add-on stats

Users: 8,965 ▲ 82
Version: 2.7.0 (Last updated: 2024-01-21)
Creation date: 2016-02-10
Weekly download count: 338
Firefox on Android: Yes
Risk impact: Moderate risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
Permissions:
  • activeTab
  • <all_urls>
  • storage
Size: 1.62M

Other platforms

Substital: Add subtitles to videos and movies (v2.7.0)
4.35 (2,697) 200,000
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Add-on summary

Be it on Netflix, Disney+, Amazon Prime, Vimeo, Youtube or any other online streaming website - Our mission is to fill any language gap that exists whether for entertainment, language learning or to make videos accessible to the Deaf and Hard-of-Hearing.

RECENT UPDATES:

  • Added support for Disney+
  • Fixed the bug with Netflix new video player. Runs again on Netflix!

FEATURES:

  • Supports Netflix, Disney+, Amazon Prime Video, YouTube, Dailymotion, Vimeo and many other video platforms.
  • Search for subtitles with the built-in-search feature.
  • Add your own subtitles with drag and drop (supported format: SubRip (.SRT) or ZIP archive containing a .SRT).
  • Manually synchronize the subtitles, if they are out of sync.
  • Change the subtitles font size, text colour and background color.
  • Supports special characters for languages like Greek or Arabic.
  • Substital is passive by default and won't inject anything in the pages you visit. Only YOU decide when to add subtitles to a video.
See more

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Extremely useful for watching movies without available subtitles
  • Good ability to customize subtitle appearance and settings
  • Works well with various video services, including YouTube
  • Helps breach language barriers for long-distance relationships
  • Easy to use and works instantly upon installation
Cons
  • Recent issues with requiring VIP membership for subtitle sourcing
  • Search for subtitles feature no longer functions properly
  • Progress bar issues where it does not advance during playback
Most mentioned
  • Works great
  • Extremely useful add-on
  • Customization options for subtitles
  • Recent issues with subtitle loading
  • Helps in hosting movie nights without downloads
Recent reviews

by FullMetalWitch, 2024-11-13

must have
View all user reviews

Add-on safety

Risk impact

Substital requires a few sensitive permissions. Exercise caution before installing.

Risk likelihood

Substital has earned a fairly good reputation and likely can be trusted.

Upgrade to see risk analysis details