What it looks like
그건 제가 오래 생각해 온 질문이었습니다.
That was a question I had been thinking about for a long time.
Split layout — translation above the picture, original below. Both stay clear of the player controls.
If you would rather keep them together, one setting stacks both lines at the bottom
in the usual place. The choice is remembered, so the next video opens the way you left it.
What it does
- Two subtitle lines at once — the captions the video already carries, plus YouTube's translation of them.
- Split or stacked. Translation above the picture and original below, or both together at the bottom.
- Tune the look. Text size, separate colours for the original and the translation, backdrop opacity, and how far the lines sit from the bottom — so they never clash with the player controls.
- Your settings stay put. Languages, layout, size and colours are remembered between videos and between sessions.
- It leaves YouTube's own captions alone. No doubled lines, and turning the extension off gives you the player exactly as it was.
- Nothing to set up. Pick a language. That is the whole configuration.
How it works
The subtitles come from the YouTube page you are already watching, and YouTube itself
produces the translation. The extension reads those two tracks, lines them up sentence
by sentence, and draws them over the player.
There is no server in the middle. No account, no API key, no analytics, no third-party
translation service. Your settings live in your own browser and nowhere else.
Privacy
This extension collects nothing.
- No personal information, browsing history, or usage data is collected.
- No data is transmitted to the developer or to any third party. There is no server.
- Your preferences (languages, layout, text size, colours) are stored locally with the
browser's own
storage API and never leave the device.
- The extension runs only on
youtube.com watch pages. It requests no access to any other site.
- No advertising, no tracking pixels, no remote code.
Because nothing is collected, there is nothing to request, correct, or delete.
Removing the extension removes its stored settings with it.
Questions
- Does it work on every video?
- A video has to have subtitles of its own. When one doesn't, the extension says so in the popup rather than failing quietly.
- Who does the translating?
- YouTube does. The extension asks YouTube for the translated track it already offers, so translation quality is YouTube's, not ours. Auto-generated captions translate less accurately than captions written by the person who uploaded the video.
- Does it slow the player down?
- The subtitle tracks are fetched once per video and rendered locally, so playback is unaffected.
- Can I turn it off for a while?
- Yes — the switch at the top of the popup. YouTube's own captions behave normally again the moment it is off.
- Is it free? Will it stay free?
- Every feature is free today. If a paid tier is ever added, people who installed before that date keep what they have.
- Does it work on Netflix or other sites?
- No. It is built for YouTube watch pages only, and it asks for no permission to any other site.
Languages
The interface is available in English, 한국어, 中文 (简体 / 繁體), Português,
Español, Türkçe and Tiếng Việt. Subtitle languages themselves are whatever YouTube
offers for the video you are watching.
Feedback
Bug reports and requests are welcome through the Support tab on the
Chrome Web Store listing. If something looks wrong on a specific video, the video's
link helps more than anything else.