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Live Translator

Live Translator EN

Jack Knight · Firefox

Real-time audio translation with close-captioning on videos. Captures tab audio and streams it to a local companion app for speech-to-text and translation.

3.0/5 2 人评分 133用户 v0.2.1当前版本
权限提示 该扩展申请访问所有网站(<all_urls>),意味着它可以读取你在任意站点的页面内容,包括已登录的页面。这是许多扩展正常工作的必要条件,但也值得你确认来源可信。

简介

Version 0.2.0 — Initial Release

Live Translator is a browser extension that provides real-time audio transcription and translation with close-captioning on videos.

### Features

Audio Capture & Transcription
- Captures audio from browser tabs using the Tab Capture API (Chrome) or HTML5 captureStream() (Firefox)
- Streams audio to a local companion app (whisper.cpp) for real-time speech-to-text processing
- All processing runs locally on your machine — nothing is sent to external servers

Translation
- Translates transcribed speech into a user-selected target language
- Supports multiple translation models via the companion app
- Source language can be set manually or left on auto-detect

Caption Overlays
- Injects a close-captioning overlay at the bottom of HTML5 video elements
- Shows original text and translated text simultaneously
- Adjustable opacity (background darkness) and font size
- Captions auto-hide after 5 seconds of silence
- Fade-in animation for smooth appearance

Video Player Integration
- Injects a "Caption" button directly onto video players (YouTube, Twitch, etc.)
- Button appears on hover — toggle captions with one click
- Automatically detects video elements even on dynamic/SPA websites
- Re-checks periodically for late-loading videos

Model Management (Popup)
- Browse, download, select, and delete STT models
- Visual indicators for active, downloaded, and available models
- Model size and translation capability shown in the list
- One-click model switching

Companion App Integration
- WebSocket connection to ws://127.0.0.1:9876
- Auto-reconnect with configurable delay
- Status indicators (connecting, connected, error)
- Download link for the companion app when not detected …

Live Translator 是做什么的

Live Translator 是一款面向 Firefox 的语言辅助类扩展,主要用来划词翻译、语法校对、词典查询。官方对它的介绍是:Real-time audio translation with close-captioning on videos. Captures tab audio and streams it to a local companion app for speech-to-text and translation.在Firefox 附加组件商店(AMO)上,它当前版本 0.2.1,评分 3(2 人评价),约 133 名用户。

适合什么人用

从功能定位看,Live Translator 更适合需要阅读外文资料或写英文内容的用户。如果你平时只是偶尔遇到相关需求,用浏览器自带功能也能凑合;但如果这件事每天都发生,装一个专门处理它的扩展通常比手动操作省事得多。需要注意的是它作用于所有网站,装上后建议先观察一两天,确认不影响常用站点的正常使用。

怎么安装 Live Translator

  1. 打开Firefox 附加组件商店(AMO)上的官方页面;
  2. 点「添加到浏览器」并确认权限提示;
  3. 装好后在扩展列表里固定图标,方便随时开关。

本站只做索引与介绍,安装包来自官方商店。如果商店页面提示当前地区不可用,说明该扩展未在你所在区域上架。

常见问题

Live Translator 是免费的吗?

Live Translator 在Firefox 附加组件商店(AMO)免费提供下载。它是浏览器扩展,装上就能直接用,不需要注册账号。

Live Translator 安全吗?

它只申请了 0 项权限,范围比较克制,没有申请「读取所有网站数据」这种大权限。

Live Translator 支持哪些浏览器?

当前收录的版本来自Firefox 附加组件商店(AMO),适用于 Firefox。同一个扩展在其他商店可能有对应版本,但功能与版本号不一定相同。

怎么卸载 Live Translator?

在扩展管理页找到 Live Translator,点移除即可。它在本地保存的设置会一起清掉,不会残留数据。

权限清单 来自 manifest.json 原文

站点访问 1

  • <all_urls>

接口权限 2

  • activeTab
  • storage