AI Subtitle Translator for YouTube™, Bilibili™, TikTok™ & 50+ Sites

Watch foreign videos without the language barrier. VinnerVi is an AI-powered subtitle translator that can transcribe audio and translate subtitles, then overlay them on the video player. DATA USE & PRIVACY VinnerVi reads the current video page to detect the video and its available captions. Nothing from the page is sent for translation until you choose a mode and confirm Translate. Subtitle mode sends the selected video URL, language choices, and caption text/timing to VinnerVi and Google Gemini. Speech mode sends the video URL and language choices to VinnerVi; our service retrieves the video's audio and sends temporary audio segments to Groq for transcription. The extension stores your sign-in session, settings, requested job URLs/status, and completed subtitles in browser storage. We also collect pseudonymous product-use analytics and standard service logs to operate, secure, and improve the service. We do not sell user data, use it for ads, or collect unrelated browsing history. Full collection, storage, retention, and sharing details: https://vinnervi.com/privacy/ AI SUBTITLE TRANSLATION Subtitle Translation — Translate existing video captions in seconds. If a video already has subtitles, VinnerVi translates them directly. Fast, accurate, and just 1 credit per minute. Audio Transcription + Translation — No subtitles on the video? VinnerVi uses AI speech recognition to transcribe the audio, then translates the transcript into your language. Best results with clear speech and minimal background noise. Streaming Mode — translate subtitles on your streaming subscriptions. Works on PrimeVideo, Viki, Crunchyroll, iQiyi Disneyplus etc. From version 1.5.0 and above: VinnerVi now translates the subtitles your streaming service already shows — live on the player, as you watch. Supported today on Crunchyroll™ and Viki™, with more subscription streaming services on the way. • Bilingual subtitles right on the player — original on top, your language below • Near-instant — we read the show's own subtitle track, so there's no transcription wait • About 1 credit per minute — the same low rate as caption translation • Just open an episode, press play, and pick your language in the extension DOWNLOAD SUBTITLE FILES Export your translated subtitles as downloadable files. VinnerVi generates subtitle files in SRT, VTT, ASS, and TXT formats — use them in video editors, media players, or upload them to your own content. Download at vinnervi.com/subtitles. SUBTITLE OVERLAY Translated subtitles appear directly on the video as you watch. Subtitles are synced to playback and cached locally — they reload automatically every time you revisit the video. WHERE IT WORKS Tested on YouTube, Bilibili, X (Twitter), and TikTok. Also works on many other sites with standard video players, but not every site is supported. Feel free to try it and let us know how it goes. MORE FEATURES - Batch Translation: Translate entire playlists or video series at once - Time Range Selection: Translate just a portion of a video to save credits - Auto Subtitle Overlay: Translated subtitles appear directly on the video player - Offline Cache: Subtitles are saved locally and load automatically on revisit HOW TO TRANSLATE VIDEO SUBTITLES 1. Sign in with Google or email 2. Open a video page and click the VinnerVi icon 3. Choose your target language and translation mode 4. Click Translate — subtitles appear on the video when ready SUPPORTED LANGUAGES 30+ languages supported, including Chinese, Korean, Japanese, English, Spanish, French, German, Russian, Arabic, Portuguese, and more. Translation quality is best for widely spoken language pairs. PRICING - Free trial: 50 credits included with every new account - Top-up: $5 for 900 credits (one-time, never expires) - Basic: $6/month for 1,800 credits Credits are charged upfront and automatically refunded if a job fails. You only pay for successful translations. Privacy: Audio is processed transiently and not stored after transcription. See our full privacy policy at vinnervi.com/privacy