Welcome to Vi Subtitle
Vi Subtitle is powered by local AI, running on-device
Your audio is processed on your own machine — nothing is uploaded.
Requires Chrome or Edge 138 and above.
Step 1: Install the Chrome extension
Click here (opens in a new tab) to Download and Install extension. (Chrome or Edge 138 and above)
Step 2: Open extension Live Caption
Open the website or videos, you want show real-time subtitles
Turn on extension's Live Caption, it will show a subtitle overlay in the browser
Play or watch your video, it will show real-time subtitles on the overlay
Step 3: Select original language or Translate language PREMIUM
Premium Feature: Real-time translation, bilingual display, and subtitle export require a Premium plan. Start your 7-day free trial →
Select original Language
Turn on extension's Translate and select a language you need
Step 4: Bilingual Mode PREMIUM
Enable Bilingual Mode to display the original audio caption and the translated text simultaneously on screen — ideal for language learners who want to follow along in both languages at once.
Step 5: Export subtitles & Change style PREMIUM
Change subtitle font, size, and colors to match your preference.
Export your subtitle session as:
- .txt — plain text transcript
- .srt — time-coded format for video players and editors (Premium)
- .vtt — WebVTT format for web-based video (Premium)