SubtitleSync Pro

Tracking since Apr 1, 2026.

Changelog

• Apr 1, 2026
  description

  Universal Subtitles for Every Video
  
  SubtitleSync Pro is the only subtitle extension that works seamlessly across all major streaming platforms — Netflix, YouTube, Disney+, Prime Video, HBO Max, Crunchyroll, Bilibili, and 100+ more.
  
  Why Users Love It:
  
  ✅ Universal Compatibility — Works on any site with HTML5 video
  ✅ Custom SRT Support — Upload your own subtitle files
  ✅ Perfect Sync Control — Adjust timing with 0.5s precision
  ✅ Style Your Way — Colors, fonts, sizes, and positioning
  ✅ Smart Persistence — Remembers your subtitles per video
  ✅ Fullscreen Support — Subtitles stay visible in fullscreen mode
  ✅ DRM-Friendly — Handles encrypted content on Netflix/Disney+
  
  Perfect For:
  🎬 Watching foreign films without official subtitles
  📚 Language learning with custom transcripts
  ♿ Accessibility when captions are missing
  🔇 Silent viewing in quiet environments
  
  How It Works:
  Open any video (YouTube, Netflix, etc.)
  Click the SubtitleSync Pro icon
  Upload your .SRT file or search OpenSubtitles
  Adjust timing and style — done!
  
  🎮 For Reddit/Twitter/Social
  Tired of Netflix removing subtitles in your region? SubtitleSync Pro lets you add your own SRT files to ANY video — Netflix, YouTube, Disney+, you name it. Free, open-source, and actually works in fullscreen. 🎬
  
  💼 Professional/B2B Style
  Enterprise-grade subtitle overlay technology for consumer streaming. SubtitleSync Pro delivers frame-accurate subtitle synchronization with Shadow DOM isolation, DRM platform compatibility, and persistent per-URL settings — all without modifying video source streams.
  
  🌍 Localization-Ready
  "Your subtitles, anywhere" — Whether you're watching K-dramas on Netflix, anime on Crunchyroll, or indie films on Mubi, bring your own subtitles in any language. Auto-syncs timing and remembers your preferences.

  SubtitleSync Pro — Universal Subtitle Overlay for Any Video
  SubtitleSync Pro adds subtitle support to any HTML5 video on the web. Upload your own subtitle file and it overlays directly on the video player — no account, no sign-up, no server required. Everything runs locally in your browser.
  How it works
  Open any page with a video, click the extension icon, upload a subtitle file, and press Apply. Subtitles appear on the video immediately and stay in sync with playback.
  Features
  🌐 Universal compatibility — works with HTML5 video players across most websites including YouTube, Vimeo, and custom media players
  📄 Multiple formats — supports SRT, VTT, ASS, and SSA subtitle files
  ⏱️ Real-time sync adjustment — shift subtitle timing forward or backward in 0.5-second steps to correct any timing mismatch without editing the file
  🎨 Fully customizable appearance — adjust font size, text color, and vertical position to match your preference
  🔍 Built-in subtitle search — search OpenSubtitles directly from the popup and download subtitles in one click, or use Podnapisi and Google as alternative sources
  💾 Session persistence — subtitles are automatically restored when you reload the page, so you never lose your place
  🖥️ Fullscreen support — subtitles remain correctly positioned when entering or exiting the browser's native fullscreen mode
  🔒 Fully private — no data is sent to any server. Your subtitle files and viewing activity never leave your device.
  
  Compatible with Chrome and Chromium-based browsers. Works on most sites that use an HTML5 video element.

• Apr 1, 2026
  short_description

  Professional subtitle overlay for any video streaming platform - Netflix, YouTube, Disney+, Prime Video, and more

  Add SRT subtitles to movies and TV shows.

• Apr 1, 2026
  permissions

  activeTab, storage, scripting

  activeTab, storage, scripting, tabs

Permissions & access

Permissions

activeTabstoragescriptingtabs

Host access

http://*/*, https://*/*

Screenshots

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