DubTab is a real-time voice translation and AI dubbing tool designed to help users overcome language barriers and understand videos, courses, calls, and live streams in real time. It provides real-time captions, optional bilingual subtitles, and low-latency AI dubbing, with no need to upload files or wait for processing.
Purpose
DubTab is suitable for any scenario where audio is playing. Whether it is courses on Coursera, Udemy, Skool, or Whop, live streams or videos on YouTube, Twitch, Netflix, or Bilibili, or online meetings on Zoom, Google Meet, or Teams, DubTab can translate in real time. It can also handle locally downloaded course files, desktop players, and audio from any app not opened in a browser tab.
Key capabilities
- Real-time voice translation + AI dubbing: captions and dubbing appear in about 0.5 seconds, making it suitable for live scenarios.
- Real-time captions and optional bilingual subtitles: you can view the original text and the translation at the same time.
- Low latency: designed for live streams and real-time calls.
- Multiple natural AI voices: you can choose an AI voice.
- Original-audio ducking control: you can adjust how much the original volume is reduced.
- Universal compatibility: it can handle the audio of a tab, a single app, or the entire system.
- No manual uploads required: no files or exports are needed; DubTab directly translates what the tab is playing.
- Privacy controls: source tab audio is processed in real time and is not saved as a recording. If "Save dubbed audio" is enabled, only the translated AI voice generated by DubTab is saved to history, and it can be replayed or deleted.
- Supports 50+ languages, with more languages coming soon.
How to use
DubTab has two ways of running, using the same account and the same number of hours, with the difference being where the audio is played:
- Browser extension
- Supports Chrome and Edge, and works on Windows, macOS, and Linux.
- Works with anything playing in a browser tab, such as courses on Coursera, Udemy, Skool, Whop, and more, as well as YouTube, Twitch, Netflix, Bilibili, and live streams.
- One-click installation, no download required, and it follows you to every machine after login.
- Desktop app
- Supports Windows 11 and macOS 14.2+.
- Can cover all sound on the computer (including browser tabs), or target only a selected single app.
- Suitable for downloaded course files, desktop players, and anything not in a tab.The content opened in the page.
Steps to use:
- Install DubTab: use the extension for browser tabs, the app for other scenarios, or install both.
- Point to the sound source: choose a tab, a single app, or the entire system, i.e. what is currently playing.
- Choose the language and voice, and subtitles and dubbing appear in about half a second.
Use cases
- Learning without language limits: take courses on Coursera, Udemy, Skool, Whop, or any platform, with real-time subtitles and dubbing that let users focus on learning rather than translating.
- Capture every live moment: YouTube Live, Twitch, or any live stream, get instant translation, and don't miss any action or joke.
- Join global meetings: Zoom, Google Meet, Teams, use the extension in the browser and the app in desktop clients.
- Follow favorite idols: K-pop livestreams, variety shows, fan content, understand every moment without waiting for fan subtitles.
Limitations
- Supports 50+ languages, with more languages coming soon.
- The browser extension only supports Chrome and Edge, and the operating system supports Windows, macOS, and Linux.
- The desktop app supports Windows 11 and macOS 14.2+.
- The free trial provides 15 minutes of total time for AI summaries and Ask AI, a one-time trial that does not reset.
- Paid plans are billed by hours; specific prices and detailed quotas need to be checked on the official page.
- The specific details and limitations of some features (such as AI summaries and Ask AI) are not yet provided.
Pricing and plans
- Annual plan: 17% discount, equivalent to 2 months free. All hours are provided upfront, with no monthly reset.
- Free: 15 minutes of total time for AI summaries and Ask AI, a one-time trial that does not reset. Enough for about 1 short video or a few minutes of a call.
- Basic plan: 9 hours/month, 30 AI credits/month, suitable for a few long videos or meetings per month.
- Standard plan: 20 hours/month, 100 AI credits/month, suitable for regular weekly courses, meetings, or livestreams.
- Premium plan: 40 hours/month, 300 AI credits/month, suitable for frequent meetings, courses, or livestreams.
- Heavy plan: 80 hours/month, 1,000 AI credits/month, suitable for daily heavy use across multiple languages.
- Team/Custom: flexible seats, add or remove team members at any time, a shared hour pool for the whole team, dedicated accountsupport and onboarding.
- No credit card required, no automatic charges.
All paid plans include: ultra-low-latency real-time dubbing, optional bilingual subtitles, a variety of natural AI voices, 60+ language support, suitable for YouTube, courses, podcasts, meetings, email support, and the Discord community. Specific prices are not stated in the provided materials.
Background
DubTab was created by Ethan Hu, with the original intention of reducing the energy spent fighting against language and understanding the content itself more. If DubTab is helpful, the author would be very happy; if not, feedback for improvement is welcome.
