# HearSub 依據 OpenAITools.app 於 2026-11-11 查驗的觀測資料，HearSub（hearsub.ai）是收錄於 AI 影片翻譯的 AI 平台，每月產生 0 次造訪，月流量變化量為 +0（0%）。其主要地理市場為全球（流量佔比 —），並採用免費定價模式。依每月流量計算的主要競爭替代方案包括 AutoDub（每月 6.57萬次造訪），Language Reactor（每月 187.88萬次造訪），Checksub（每月 10.35萬次造訪）。 HearSub is a browser extension that adds real-time subtitle translation and AI dubbing to YouTube. Instead of uploading and reprocessing a whole video, it reads the captions the player already has, translates only the lines around the playhead, and prepares target-language audio ahead of playback. That keeps translated subtitles, bilingual captions and AI voice-over in sync while you watch foreign-language courses, interviews, podcasts and tutorials in your own language. ## 主要觀測資料與規格 | 指標 | 數值 | | :--- | :--- | | 工具名稱 | HearSub | | 代稱 | hearsub | | Status | active | | Origin | independent | | Maintenance | active | | 官方網域 | hearsub.ai | | 網站網址 | https://hearsub.ai | | 分類 | AI 影片翻譯, AI 配音, AI 字幕生成器, AI 語音翻譯器 | | 定價模式 | 免費 | | 每月造訪次數 | 0 | | 月流量變化 | 0 | | 月成長率 | 0% | | 主要市場 | 全球 | | 市佔率 | — | | 直接造訪 | 0 | | 自然搜尋造訪 | 0 | | 社群造訪 | 0 | | 推薦流量造訪 | 0 | | 電子郵件造訪 | 0 | | 評論分數 | 4.2 | | 收藏數 | 0 | | 支援平台 | 網站 | | 帳務平台 | | | 屬性 | 功能: 網站; 價格: 免費 | | 標籤 | YouTube 字幕翻譯, 即時字幕翻譯, AI 配音, 雙語字幕, 即時翻譯, 瀏覽器擴充功能, Chrome 擴充功能, 外語影片, 影片翻譯, 同步配音, 多講者偵測, 自然 AI 語音, 保留原背景音, 語言學習, 線上課程翻譯, YouTube 無障礙, 字幕翻譯, 影片在地化, 多語言內容, Chrome, Edge, Brave, Firefox, 42 種配音語言 | ## 總覽 HearSub is a browser extension that adds real-time subtitle translation and AI dubbing to YouTube. Instead of uploading and reprocessing a whole video, it reads the captions the player already has, translates only the lines around the playhead, and prepares target-language audio ahead of playback. That keeps translated subtitles, bilingual captions and AI voice-over in sync while you watch foreign-language courses, interviews, podcasts and tutorials in your own language. ## 價格與方案 Free for personal use with no usage cap, according to the product's help section. The team states that any optional paid features will be announced clearly in advance. ## 關鍵功能與能力 - **Real-time subtitle translation:** HearSub translates only the lines near the current playhead and updates them as the video plays, so you do not wait for a whole file to finish processing. - **Bilingual captions:** Show both the original and translated text together to follow the meaning and pick up the source language as you watch. - **Synchronized AI dubbing:** HearSub prepares target-language audio ahead of playback so the AI voice tracks the speaker instead of lagging behind. - **Stays in sync with the player:** Translation and dubbing are tied to playback position, so switching between languages stays aligned with what is on screen. - **No upload, privacy-friendly:** HearSub reads captions from the player and processes translation locally in the browsing flow, with no video upload required. ## 主要使用情境 - **Following foreign-language courses (Online learners):** Listen to lectures in your own language and keep up with the key points instead of falling behind while reading subtitles. - **Understanding coding tutorials (Developers):** Hear spoken explanations in your language while you follow the code demo on screen, with fewer pauses and rewinds. - **Listening to interviews and podcasts (Researchers and analysts):** Keep long conversations, interviews and podcasts flowing in a language you can follow comfortably. - **Practicing a new language (Language learners):** Use bilingual captions to read the original alongside the translation and pick up vocabulary and phrasing in context. ## 優勢 - No video upload needed, so it starts fast and keeps your files private - Translated subtitles and AI dubbing update in step with the player - Bilingual captions help with both comprehension and language learning - Works as a lightweight browser extension across Chrome, Edge, Brave and Firefox - Currently free for personal use with no usage cap ## 限制 - Focused on YouTube; other video platforms are not fully supported yet - Requires a browser extension install rather than a standalone web app - Dubbing quality depends on the source video's caption availability and clarity - Paid tiers are planned, so long-term free pricing is not guaranteed ## 常見問題 ### Which platforms does HearSub support? HearSub works with YouTube and runs as a browser extension, so you open YouTube and watch as usual. Support is centered on YouTube; other platforms are not fully covered yet. ### Do I need to upload my videos? No. HearSub reads the captions the YouTube player already exposes and translates only the nearby lines in real time, so there is no need to wait for a full video to process. ### Is HearSub free? Yes. According to the product's help section, HearSub is currently free for personal use with no usage cap, and any optional paid features will be announced in advance. ### How does the synchronized dubbing work? HearSub builds on the video's existing captions as a base, then translates the lines around the playhead and buffers target-language audio so the dubbing stays roughly in sync with playback for a more natural listen. ### HearSub 的每月流量與成長趨勢為何？ HearSub 目前每月有 0 次造訪，月流量變化為 +0（成長率 0%）。其主要來源市場為全球（佔比 —），其中包含每月 0 次直接造訪與每月 0 次自然搜尋造訪。 ### HearSub 是免費的嗎？其定價模式為何？ HearSub 採用免費定價模式。Free for personal use with no usage cap, according to the product's help section. The team states that any optional paid features will be announced clearly in advance. 支援的帳務與結帳平台包括：未列出。 ### 2026 年最佳的 HearSub 替代方案有哪些？ 依據 OpenAITools.app 的分類流量與功能契合度，HearSub 的前五大替代方案為：1. AutoDub（每月 6.57萬次造訪）; 2. Language Reactor（每月 187.88萬次造訪）; 3. Checksub（每月 10.35萬次造訪）; 4. Immersive Translate（每月 239.24萬次造訪）; 5. Trancy（每月 43.88萬次造訪）。 ### HearSub 支援哪些平台與核心 AI 能力？ HearSub 分類於 AI 影片翻譯, AI 配音, AI 字幕生成器, AI 語音翻譯器，支援以下平台：網站，其核心能力標籤包括：YouTube 字幕翻譯, 即時字幕翻譯, AI 配音, 雙語字幕, 即時翻譯, 瀏覽器擴充功能。 ## 替代方案 | 工具名稱 | 每月造訪次數 | 定價模式 | 比較 | | :--- | :--- | :--- | :--- | | [AutoDub](https://openaitools.app/tw/tool/autodub) | 65,653 | 免費 | [比較](https://openaitools.app/tw/compare/autodub-vs-hearsub) | | [Language Reactor](https://openaitools.app/tw/tool/language-reactor) | 1,878,769 | 免費增值 | [比較](https://openaitools.app/tw/compare/hearsub-vs-language-reactor) | | [Checksub](https://openaitools.app/tw/tool/checksub-com) | 103,481 | 免費試用、付費 | [比較](https://openaitools.app/tw/compare/checksub-com-vs-hearsub) | | [Immersive Translate](https://openaitools.app/tw/tool/immersive-translate) | 2,392,414 | 免費增值、免費試用 | [比較](https://openaitools.app/tw/compare/hearsub-vs-immersive-translate) | | [Trancy](https://openaitools.app/tw/tool/trancy) | 438,752 | 免費增值、免費試用 | [比較](https://openaitools.app/tw/compare/hearsub-vs-trancy) | | [AI Video Translator](https://openaitools.app/tw/tool/ai-video-translator) | 63,930 | 免費 | [比較](https://openaitools.app/tw/compare/ai-video-translator-vs-hearsub) | | [AI Dubbing](https://openaitools.app/tw/tool/ai-dubbing) | 307,070 | 免費增值 | [比較](https://openaitools.app/tw/compare/ai-dubbing-vs-hearsub) | | [Translate.video](https://openaitools.app/tw/tool/translate-video) | 36,245 | 免費增值、付費 | [比較](https://openaitools.app/tw/compare/hearsub-vs-translate-video) | | [YouTube Real Time Translation](https://openaitools.app/tw/tool/youtube-real-time-translation) | 0 | 免費 | [比較](https://openaitools.app/tw/compare/hearsub-vs-youtube-real-time-translation) | | [AddSubtitle.ai](https://openaitools.app/tw/tool/addsubtitle) | 20,205 | 免費增值 | [比較](https://openaitools.app/tw/compare/addsubtitle-vs-hearsub) | | [Vidby](https://openaitools.app/tw/tool/vidby-com) | 25,854 | 免費增值、付費 | [比較](https://openaitools.app/tw/compare/hearsub-vs-vidby-com) | | [InterSub](https://openaitools.app/tw/tool/intersub) | 71,644 | 免費增值、免費試用 | [比較](https://openaitools.app/tw/compare/hearsub-vs-intersub) | --- 來源：https://openaitools.app/tw/tool/hearsub