Understand every word you watch.
Definition, context, meaning. Instantly.
In action
Step 1
Hover any subtitle word
Move your cursor over any word or phrase while watching. Thesara runs silently until you do.
Step 2
A card appears instantly
Definition and synonyms load immediately. The AI explanation follows. Scene-aware, character-aware, show-aware.
Step 3
Keep watching
Dismiss the card and the video resumes exactly where you left off. Under 3 seconds, every time.
Features
01 · Dictionary
Definition, part of speech, and synonyms on hover, without leaving the screen or breaking focus.
02 · AI
"Cook" in Breaking Bad isn't about food. The AI reads the show, the characters, and the last 6 lines of dialogue.
03 · NLP
Automatically detects phrases like "call it a day" and explains them as a single unit, not word by word.
04 · Quota
A shared Groq API key is provided free for all users, up to 14,400 calls per day. When the daily quota runs out, you're shown a clear disclosure and can plug in your own free Groq key to keep going. No surprise charges, ever.
Feedback, bugs, or collaborations. We're listening.
We reply to everything.