HearSub – YouTube Video Translator & AI Dubbing

Translate YouTube videos into English with AI dubbing and bilingual subtitles, generated as the video plays.

Understand foreign-language YouTube videos without constantly reading subtitles. Whether you are watching an online course, coding tutorial, interview, podcast, or creator video, HearSub helps you follow the content as naturally as an English-language video. Open a YouTube video, choose English as the target language, and press play. HearSub translates the video and generates AI English dubbing while it plays. There is no need to download or upload the video, and no need to wait for the entire video to be processed. ★ Free trial — Sign in to try video translation, English subtitles, and AI dubbing. ★ HearSub Pro — Get higher usage limits, more natural AI translation, multiple dubbing voices, and additional advanced features. WHY HEARSUB? Listen instead of constantly reading subtitles Hear the video in English or another language you understand, so you can focus on the visuals, slides, demonstrations, and code. Translation while the video plays You do not need to wait for the whole video. Translation and dubbing begin during playback. Dubbing synchronized with the video When you pause, resume, seek, or change the playback speed, the AI voice follows the current video position. Bilingual subtitles Listen to the dubbed audio while viewing translated subtitles, making technical terms and complex ideas easier to understand. CORE FEATURES - One-click video translation and dubbing directly on the YouTube watch page—no link copying or video upload required. - Automatic source-language detection, so you only need to choose the language you want to hear. - Context-aware AI translation designed to reduce awkward literal translations in long-form videos. - AI dubbing in English, Chinese, Japanese, Korean, Spanish, Portuguese, French, German, and other supported languages. - Multiple AI voices with different genders and styles. - Synchronized translated subtitles for listening and reading at the same time. - Automatic resynchronization after pausing, seeking, fast-forwarding, or rewinding. - Support for playback-speed changes. - Separate original-audio and dubbing-volume controls, helping preserve useful music and ambient sound. IDEAL FOR - Online courses and lectures - Programming and technical tutorials - Interviews, podcasts, and long videos - Videos from international creators - Language learning with original audio, translation, and dubbing HOW TO USE 1. Install the HearSub browser extension. 2. Open a supported online video. 3. Choose English or another target language and select a dubbing voice. 4. Press play and listen to the translated content. Language should not be a barrier to knowledge. Install HearSub and turn more foreign-language videos into content you can understand and hear in English. Website: https://hearsub.ai Support: teplernordmark@gmail.com