TwoSub

TwoSub adds a second subtitle line to your favorite streaming platforms. Watch movies and series in two languages at the same time — perfect for language learning.

SUPPORTED PLATFORMS

• Netflix

• YouTube

• Prime Video

• Disney+

• Twitch

• Crunchyroll

KEY FEATURES

• Dual subtitles — see the original and translation simultaneously

• Word-by-word translation — hover any word for an instant translation

• Personal dictionary — click a word to save it for later

• 13 languages supported — English, French, Spanish, German, Italian, Portuguese, Dutch, Arabic, Turkish, Russian, Japanese, Korean, Chinese

• Fully customizable — font, size, colors, position, opacity

• YouTube auto-caption improvement — smoother, more readable sentences

• Draggable subtitles — place them anywhere on screen

• Keyboard shortcut — Ctrl+Shift+S to toggle on/off

HOW IT WORKS

1. Enable TwoSub in Safari → Settings → Extensions

2. Open Netflix, YouTube or any supported platform

3. Turn on subtitles on the video player

4. Click the TwoSub icon in Safari toolbar to configure your languages

5. Enjoy watching in two languages!

TwoSub works entirely in your browser. No account required, no data collected.