Substital
Add subtitles to any video or movie online. Be it on Netflix, Disney+, Youtube or any other online streaming platform.
Substital: Add Subtitles to Online Streaming Videos
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
Weekly download count: 349
Firefox on Android: Yes
Risk impact: Moderate risk impact 
Risk likelihood:
Manifest version: 2
Permissions:
- activeTab
- <all_urls>
- storage
Size: 1.62M
Email: su*****@substital.com
URLs: Website ,Privacy policy
Ranking
# 816 ▲ 1
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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.
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spammy, or outdated.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
User reviews
by fiti25, 2024-12-16
Subtitle synchronization sucks... Sync is off by more than 3 seconds.
by Love_Suwako, 2024-12-01
by Firefox user 18688026, 2024-11-16
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