Translation tools that keep up with you.
Read a page, inspect one thought, write a reply, or follow a video. BothLang puts the right translation interaction exactly where the moment happens.
Translate at the speed of curiosity
Hover translation
Point at a paragraph and use Shift, Alt, or Ctrl to reveal its translation in place.
Explore the featureWrite confidently across languages
Input-field translation
Press Alt + Enter in a plain-text editor for a translation preview with Replace, bilingual, and Copy actions.
Explore the featureTurn watch time into language time
YouTube bilingual subtitles
BothLang discovers a video's available subtitle track, translates it, and keeps the overlay synchronized as you watch.
Explore the featureA familiar shortcut for the whole page
Context-menu translation
A simple Translate page action stays available in your browser's right-click menu.
Explore the featureWatch any video in your language
Live voice dubbing
BothLang captures YouTube audio, translates speech via Soniox AI, and plays the translated voice over the video in real-time. The original volume is automatically reduced.
Explore the featureFull-page bilingual translation
Keep original passages connected to their translations across the page.
Gemini AI translation
Use context-aware AI translation for nuanced and complex passages.
Multiple translation providers
Choose Google, Microsoft Edge, or an available BothLang AI provider.