# HearSub 根据 OpenAITools.app 于 2026-11-11 核对的流量数据，HearSub（hearsub.ai）是一个收录在 AI 视频翻译下的 AI 平台，月访问量为 0，月度环比流量变化为 +0（0%）。其主要地理市场为全球（— 流量份额），采用免费定价模式。按月流量计算的主要竞争替代方案包括 AutoDub（6.57万次访问/月），Language Reactor（187.88万次访问/月），Checksub（10.35万次访问/月）。 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. ## 关键遥测与规格 | 指标 | 数值 | | :--- | :--- | | 工具名称 | HearSub | | 标识 | hearsub | | Status | active | | Origin | independent | | Maintenance | active | | 官方域名 | hearsub.ai | | 官网地址 | https://hearsub.ai | | 分类 | AI 视频翻译, AI 配音, AI 字幕生成器, AI 语音翻译器 | | 定价模式 | 免费 | | 月访问量 | 0 | | 月度环比流量变化 | 0 | | 月度环比增长率 | 0% | | 主要市场 | 全球 | | 市场份额 | — | | 直接访问量 | 0 | | 自然搜索访问 | 0 | | 社交访问 | 0 | | 推荐访问 | 0 | | 邮件访问 | 0 | | 评价得分 | 4.2 | | 收藏数 | 0 | | 支持平台 | 网站 | | 计费平台 | | | 属性 | 功能: 网站; 定价: 免费 | | 标签 | YouTube 字幕翻译, 实时字幕翻译, AI 配音, 双语字幕, 实时翻译, 浏览器扩展, Chrome 扩展程序, 外语视频, 视频翻译, 同步配音, 多说话人识别, 自然 AI 语音, 保留原背景音, 语言学习, 在线课程翻译, YouTube 无障碍, 字幕翻译, 视频本地化, 多语言内容, Chrome, Edge, Brave, Firefox, 42 种配音语言 | ## 概览 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. ## 定价与套餐 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. ## 关键功能与能力 - **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. ## 主要用例 - **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. ## 优势 - 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 ## 局限 - 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 ## 常见问题 ### 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 的月流量和增长趋势如何？ HearSub 目前每月获得 0 访问量，月度环比流量变化为 +0（增长率 0%）。其主要来源市场是全球（— 份额），包括每月 0 次直接访问和每月 0 次自然搜索访问。 ### HearSub 免费吗？它的定价模式是什么？ HearSub 采用免费定价模式。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. 支持的计费和结账平台包括：未列出。 ### 2026 年 HearSub 的最佳替代方案有哪些？ 基于 OpenAITools.app 的分类流量和功能契合度，HearSub 的前五个替代方案是：1. AutoDub（6.57万次访问/月）; 2. Language Reactor（187.88万次访问/月）; 3. Checksub（10.35万次访问/月）; 4. Immersive Translate（239.24万次访问/月）; 5. Trancy（43.88万次访问/月）。 ### HearSub 支持哪些平台和核心 AI 能力？ HearSub 被归类在 AI 视频翻译, AI 配音, AI 字幕生成器, AI 语音翻译器下，支持以下平台：网站，其核心能力标签包括：YouTube 字幕翻译, 实时字幕翻译, AI 配音, 双语字幕, 实时翻译, 浏览器扩展。 ## 替代工具 | 工具名称 | 月访问量 | 定价模式 | 对比 | | :--- | :--- | :--- | :--- | | [AutoDub](https://openaitools.app/zh/tool/autodub) | 65,653 | 免费 | [对比](https://openaitools.app/zh/compare/autodub-vs-hearsub) | | [Language Reactor](https://openaitools.app/zh/tool/language-reactor) | 1,878,769 | 免费增值 | [对比](https://openaitools.app/zh/compare/hearsub-vs-language-reactor) | | [Checksub](https://openaitools.app/zh/tool/checksub-com) | 103,481 | 免费试用，付费 | [对比](https://openaitools.app/zh/compare/checksub-com-vs-hearsub) | | [Immersive Translate](https://openaitools.app/zh/tool/immersive-translate) | 2,392,414 | 免费增值，免费试用 | [对比](https://openaitools.app/zh/compare/hearsub-vs-immersive-translate) | | [Trancy](https://openaitools.app/zh/tool/trancy) | 438,752 | 免费增值，免费试用 | [对比](https://openaitools.app/zh/compare/hearsub-vs-trancy) | | [AI Video Translator](https://openaitools.app/zh/tool/ai-video-translator) | 63,930 | 免费 | [对比](https://openaitools.app/zh/compare/ai-video-translator-vs-hearsub) | | [AI Dubbing](https://openaitools.app/zh/tool/ai-dubbing) | 307,070 | 免费增值 | [对比](https://openaitools.app/zh/compare/ai-dubbing-vs-hearsub) | | [Translate.video](https://openaitools.app/zh/tool/translate-video) | 36,245 | 免费增值，付费 | [对比](https://openaitools.app/zh/compare/hearsub-vs-translate-video) | | [YouTube Real Time Translation](https://openaitools.app/zh/tool/youtube-real-time-translation) | 0 | 免费 | [对比](https://openaitools.app/zh/compare/hearsub-vs-youtube-real-time-translation) | | [AddSubtitle.ai](https://openaitools.app/zh/tool/addsubtitle) | 20,205 | 免费增值 | [对比](https://openaitools.app/zh/compare/addsubtitle-vs-hearsub) | | [Vidby](https://openaitools.app/zh/tool/vidby-com) | 25,854 | 免费增值，付费 | [对比](https://openaitools.app/zh/compare/hearsub-vs-vidby-com) | | [InterSub](https://openaitools.app/zh/tool/intersub) | 71,644 | 免费增值，免费试用 | [对比](https://openaitools.app/zh/compare/hearsub-vs-intersub) | --- 来源：https://openaitools.app/zh/tool/hearsub