SimIntpr - Translate & Speak YouTube Subtitle icon

SimIntpr - Translate & Speak YouTube Subtitle

by Simon

v3.8.0 Updated Jun 26, 2025 514KiB
CWS
10K
Users
β˜… 3.28
68 reviews
#1275
of 56.3K
workflow
#386 of 7K

Description

SimIntpr is a virtual Simultaneous Interpreter for YouTube videos. It translates YouTube video subtitles and speaks them out. If you want to watch any YouTube video and hear the voice of your own language, SimIntpr is your thumb of choice. It can translate the YouTube subtitles / captions into almost all widely used languages and read them out. SimIntpr uses state-of-art Text-To-Speech(TTS) Engine to generate synthesized voice. It supports as many as 67 voices covering almost 30 different languages. Currently, to make the extension work, the YouTube video should have at least 1 official subtitle. You need to choose a YouTube official subtitle as the translation source, then select your preferred voice language, tune, speed, etc. We're working on supporting uploading your local subtitles, or links to external subtitles. Once you set up, SimIntpr speaks out your preferred language and voice, just as a virtual simultaneous interpreter. The translated voice does not conflict with the YouTube original one. So you can keep them both and adjust the volume separately as you wish. SimIntpr remembers your settings locally. Hence the translated voice comes up every time when you open a new YouTube video, needless to set up repeatedly. Features: βœ… Translated YouTube subtitle and speak out βœ… Multiple speech voice related settings Upcoming features: πŸƒβ€β™‚οΈ Support upload your local YouTube subtitle πŸƒβ€β™‚οΈ Support embed YouTube videos anywhere on the web Supported languages include: Almost all widely used languages are supported. (Listing languages here is forbidden by Chrome Web Store to avoid keyword abuse.) Tips: πŸ”Ή Pin the extension and left-click the icon to set up language, voice and other settings. Attention: ⚠️ This extension only works when the YouTube video has AT LEAST one official subtitle / caption Contact: 😜 Also feel free to contact us if you have any questions or suggestions on this extension. πŸ“§ Email: support@simintpr.com
SimIntpr - Translate & Speak YouTube Subtitle screenshot 1SimIntpr - Translate & Speak YouTube Subtitle screenshot 2

Reviews (8 cached)

β˜…β˜†β˜†β˜†β˜†2025-08-27
dith Fury

Not working.

β˜…β˜†β˜†β˜†β˜†2025-07-28
Maria Jose Baena

No traduce pone esto: Please make sure you are on a video page that contains AT LEAST one official subtitle. Network error happends so also try reloading the page. If problem persists, contact support@simintpr.com

β˜…β˜†β˜†β˜†β˜†2024-04-21
pauzak

it's a paid extension. only gives a try for a few minutes. pretty frustrating and useless.

β˜…β˜†β˜†β˜†β˜†2022-11-10
Md. Rafiqul Islam

It has stopped working suddenly!

β˜…β˜…β˜†β˜†β˜†2025-12-14
m pe

It will not work well on Linux because the instructions to get more voices are the ones that are installed on Microsoft/Mac (that each company has created themselves).Not sure what is meant by requiring one official subtitle / caption,if auto generated subtitles or what but it should have said it's not Linux compatible in description or requires a complex work-around.

β˜…β˜…β˜†β˜†β˜†2023-09-12
Asshen Asshen

At least you have to pay for this application , there are so many better and free !!!!

β˜…β˜…β˜…β˜†β˜†2023-01-17
Kamikiseto Jyurai

need more language I want to translate Thai video

β˜…β˜…β˜…β˜†β˜†2022-12-11
JoΓ£o Paulo

Plis, add speed "4" at max

Permissions (2)

Permissions

storageβ„Ή Can store data locally in your browser ttsβ„Ή Can use text-to-speech

Details

Version 3.8.0
Updated Jun 26, 2025
Size 514KiB
First Seen Mar 24, 2026