Dual Subtitles for YouTube™

About

Dual Subtitles for YouTube™ shows the original language and your translation at the same time, as one clean, non-overlapping layer — great for language learning and for following along in a second language.

FEATURES
• Two languages, one line-set. Original and translation shown together; YouTube's own caption layer is hidden so the two never overlap.
• Per-sentence, no flicker. Subtitles switch by whole sentence instead of jumping word by word.
• Two translation engines. YouTube's own sentence-aligned translation by default, with an automatic Google Translate fallback so lines stay in sync.
• Fully customizable. Per-line font, size, text color, background color and opacity, outline, line spacing, and which line sits on top — with a live preview.
• Draggable and positionable. Drop the subtitle box anywhere on the video; it remembers where. Works in fullscreen. Double-click to reset.
• One-click toggle. A caption button in the player's control bar turns the overlay on or off — handy for videos that already have burned-in subtitles.
• Export to SRT. Save the current video's subtitles for offline study — original, translation, or bilingual.

PRIVACY
No accounts, no tracking, no analytics, no ads, and no developer server. Your settings stay in your browser. The only data sent out is the caption text of the video you are watching, transmitted solely to the translation service to translate it — nothing is sent to the developer. Full policy: https://github.com/Gythiro/yt-dual-subs/blob/main/PRIVACY.md

Open source (MIT): https://github.com/Gythiro/yt-dual-subs

Not affiliated with, endorsed by, or sponsored by YouTube or Google LLC. "YouTube" is a trademark of Google LLC, used only to describe compatibility.