SimIntpr – Translate & Speak YouTube Subtitle
A virtual simultaneous translation tool for YouTube videos that translates subtitles and reads them aloud.
Introduction
A virtual simultaneous interpreter for YouTube videos, translating subtitles and speaking them out.
What is the SimIntpr AI Chrome extension/plugin?
SimIntpr is a virtual simultaneous translation tool for YouTube videos. It translates the subtitles of YouTube videos and reads them aloud. It translates YouTube subtitles and captions into nearly all widely used languages and uses a top-tier text-to-speech (TTS) engine to read them aloud, supporting up to 67 voices across approximately 30 different languages. For the extension to work properly, the YouTube video must have at least one official subtitle. The translated audio does not conflict with the original YouTube audio.
How do I use the SimIntpr AI Chrome extension/plugin?
Install the SimIntpr extension. Select an official YouTube subtitle as the translation source, then choose your preferred voice language, tone, and speed. The translated audio will play simultaneously with the original YouTube audio. Pin the extension, then left-click the icon to set the language, voice, and other settings.
Core Features of the SimIntpr AI Chrome Extension/Plugin
Translate YouTube subtitles and read them aloud
Various Voice-Related Settings
Various Voice-Related Settings
Visits：13
Updated：2026-11-07
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