Understand Every YouTube Video
hiFetcher is a free Chrome extension that explains any word or phrase in YouTube transcripts using AI. Select text and get an instant explanation. No rewatching needed.
Add to Chrome, it's freeEverything you need to learn from YouTube
Instant AI Explanations
Select any word or phrase in the transcript and get a context-aware explanation powered by Claude
Live Transcript Sync
The transcript scrolls with the video so you always know exactly where you are
Works on Any Video
Lectures, tutorials, interviews, podcasts. If it has a transcript, hiFetcher works
No Rewatching
Read the transcript and jump to any moment with one click
Free to Start
3 free AI explanations to try, then a simple subscription for unlimited use
Privacy First
Only the selected text and transcript context is sent to the AI. Your browsing history is never shared