Understand every word,
without pausing.
Subly turns the subtitles you're already watching into clickable, scene-aware explanations. Click a word, understand the moment, keep watching — no dictionary tab, no rewind.
Three seconds, zero friction.
No new player, no importing files, no leaving your show. Subly renders an invisible layer of clickable hotspots over the subtitle the platform already draws.
Click a word
Every word in the live subtitle becomes tappable — pixel-aligned over the real caption, never covering or pausing the video.
Subly reads the scene
It sends the word with the surrounding lines to a scene-aware AI — so the answer fits this moment, not a generic dictionary entry.
Understand instantly
A compact card appears in place: meaning, pronunciation, part of speech, and what it means right here. Keep watching.
A dictionary tells you what a word means.
Subly tells you what it means here.
Exceedingly idealistic; unrealistic and impractical.
He's just pitched a plan everyone thinks is doomed but noble — the word is teasing his hopeless idealism, not praising it.
Everything it does, nothing it doesn't.
Never pauses your show
A transparent overlay of clickable hotspots — the platform's own subtitle is never touched, hidden, or redrawn.
Scene-aware, not a lookup
Reads the neighbouring lines so it explains the word in context — names, slang and idioms included, not just textbook definitions.
Every screen you watch
Netflix, YouTube, Prime Video and Hotstar in the browser — plus a featherweight desktop app that syncs to VLC.
Private by design
No account, no sign-up, no personal data — nothing about you is ever stored. You just install and start clicking.
Instant on repeat
Answers are cached, so a word you've seen before returns in well under a tenth of a second.
Hear it spoken
One tap pronounces the word aloud — no audio files, no extra network, straight from your browser.
You don't sign in. So there's nothing to leak.
Subly was built guest-first on purpose. The magic works the instant you install it — because the thing that makes most apps risky simply isn't here.
Start understanding tonight.
Install once, then click any subtitle on your next movie. That's the whole setup.