YOUTUBE SUBTITLE TRANSLATOR

Translate YouTube subtitles into the language you understand.

Mono helps you watch across languages with original and translated subtitles together. Instead of replacing each caption with another isolated caption, Mono uses surrounding context to rebuild more readable thoughts and keep the translation connected to the video.

YouTube video with a bilingual subtitle experience
Original + translationHear the real speaker. Read what you understand. Return when you need to.

01 / WHILE YOU WATCH

Translate YouTube subtitles without leaving the conversation.

Mono works beside a YouTube video. When accessible captions are available, choose your target language and begin watching. Original and translated subtitles can stay together so you can follow the content while still seeing how the speaker expressed the idea.

The video stays at the center. Translation simply gives you another way into it.

02 / CONTEXT

Not every caption box is a complete sentence.

Automatic captions are often divided by display timing rather than by complete spoken thoughts. Mono reads nearby lines and tries to reconstruct a more readable unit before the final translation is shown. That helps reduce the feeling of translating disconnected fragments one by one.

03 / BILINGUAL

Keep the original nearby when you want to understand more deeply.

The translation does not have to hide the source. Keep the original subtitle beside the translation, then use Focus to return to the real video and hear how a phrase was actually spoken.

04 / 27 LANGUAGES

A video in Japanese, Spanish or Korean can still become something you understand.

Mono supports 27 languages in its subtitle translation experience. Real-world quality still depends on the source captions, language pair and Gemini model you choose.

05 / GEMINI

You connect the translation engine yourself.

Mono uses the Gemini API key you provide. Mono Pro does not sell translation quota; the subscription pays for the subtitle workflow, interface, account, Focus and Workspace. Gemini limits and any charges are managed separately by Google.

ONE VIDEO

Try it with the video you want to understand.

Try Mono Pro for 3 days →