LumaSub: Live Speech-to-Subtitle Translator

Follow foreign-language videos, live streams, chats and web pages: speech and text are translated into your language as you watch.

Foreign-language live streams, videos and web pages, understood as you watch. Speech becomes captions in your language in real time, and live chat and web pages get translated too. 🎬 Video and live stream captions • Instant mode: captions the moment someone speaks • Precise mode: captions appear right as the words are spoken, with tighter timing • If a video already has captions, LumaSub translates those directly: more accurate, and it uses less of your translation time • Speaker labels show who said what at a glance • Caption size, position, opacity and pace are all yours to adjust 💬 Live chat • Messages are translated into your language, fast enough to keep up even with busy streams • One click sums up what chat is talking about • Type in your language, get it in the stream's language, then copy and paste to post • Translations match the chat's colors by default so they blend in, and you can pick your own 🌐 Web translation • Foreign-language paragraphs you can't read get a translation right underneath • Buttons and menus switch to your language too, and new content is translated as it appears 📖 Look back and keep • The Reading panel keeps recent captions, so you can catch anything you missed • Save captions as a file • Glossary: names and terms translated the way you choose 🌏 Interface languages: 繁中, 简中, English, 日本語, 한국어, Español, Français, Deutsch, Português, العربية, हिन्दी, Bahasa Indonesia ✨ New in 2.5 • New: web translation, chat summary, reply in their language, glossary, caption export • Videos that have captions get those captions translated directly • Faster chat translation, and you can choose the translation color • On-video buttons can be collapsed or turned off for a cleaner view 💰 Pricing • New accounts get a 15-minute free trial with every feature included • Monthly plan: USD 14.99 for 30 hours a month (renews automatically, cancel anytime) • Time packs: 5 hours USD 4.99, 15 hours USD 12.99, never expire • Precise mode counts 1 minute watched as 2 minutes; chat, web and caption translation use time based on the amount of text, so busy streams with lots of messages use it faster • Refundable within 14 days of purchase if unused; prices may not include tax 🔒 Privacy No recording, and no record of what you watch. Sound and text pass through our servers to speech recognition and translation providers for processing. We don't store the content in a database, we don't sell data, and we don't use it for ads. See the Privacy Policy for details. ⚠️ Good to know • Works only in Chrome on desktop • Chat, web and caption translation are only for users 18 and older • Some features aren't available in some regions • Developed by a third party, with no official affiliation with the supported sites and platforms • Payments are processed by Lemon Squeezy (Lumenhouse Studio); not sold by Google