Real-Time Subtitles for Videos

Generate real-time video subtitles and translations with Vi Subtitle’s AI. Perfect for videos, meetings, or live streams.

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Vi Subtitle real-time video caption demo

How to Generate Real-Time Subtitles with Vi Subtitle

Here are some tips to Generate subtitles.

Live caption feature in Vi Subtitle

Add auto-captions

Enable ‘Live Caption’ in the Vi Subtitle extension to add real-time video subtitles instantly. It transcribes audio from videos, meetings, online courses, and live streams seamlessly.

Change subtitle styles, personalize, and more

Change subtitle styles, personalize, and more

You can change your subtitles' style, font, size and colors. Select from different backgrounds.

Real-time subtitle translation with Vi Subtitle

Translate & export subtitle files

PREMIUM

Translate in real time and export as .txt, .srt or .vtt. Enable bilingual mode to see original and translation side by side.

PREMIUM features include a7-day free trial— no commitment required.

Learn more about real-time subtitles for your video:

Top Features of Vi Subtitle’s AI Video Captions

Captions and subtitles benefit everyone — with no time limits, ever.

Real-time Subtitles — Unlimited

Automatically generate real-time video subtitles from live audio. No session caps, no per-minute limits — caption as long as you need.

Multi-language Translation

PREMIUM

Translate in real time between English, Chinese, Japanese, French and 10+ languages.

Bilingual Display

PREMIUM

Show original captions and translation simultaneously — perfect for language learners.

SRT / VTT Export

PREMIUM

Export subtitles as .txt, .srt or .vtt files for video editing, archiving, and accessibility.

100% Private — On-Device AI

The extension with fully local AI processing. Powered by OpenAI Whisper — your audio is never uploaded and never reaches any server.

Unlimited Usage Time

Use Vi Subtitle as long as you want — every session, every day. No usage caps, no cooldowns. Try all Premium features free for 7 days.

Use Cases for Vi Subtitle Video Subtitles

Here's how our users use Vi Subtitle.

Online Videos case about realtime subtitles

Online Videos

Most social media videos are foreign films or someone watched on mute. Solution? real-time subtitles! By auto-generating subtitles and translate in real-time, you can accessible to thousands more video or films, and it also helped those who are deaf or hard of hearing.

Meeting & Online Courses show live captions

Meeting & Online Courses

In a meeting or online course, imagine having real-time subtitles and translation seamlessly integrated into your experience. This tool transforms meetings and online courses into accessible experiences, enhancing communication and learning for everyone involved.

Live Streaming show realtime subtitles

Live Streaming Subtitles

If you enjoy watching foreign live streamers, this tool is for you! Generate subtitles and translate in real-time. With real-time translations, you can better understand the content and connect more effectively with creators worldwide.

FAQ

Here are some of our frequently asked questions. If you have any other questions you’d like answered please feel free to email us.

Yes! The free plan gives you unlimited real-time AI captions powered by on-device Whisper. Premium features — real-time translation, bilingual display, and SRT/VTT export — require a paid plan. Here

Yes — every Premium plan includes a 7-day free trial. You can cancel anytime before the trial ends and won't be charged.Here

Vi Subtitle is a browser extension powered by WebGPU and OpenAI Whisper running 100% on your device. No audio is sent to any server.

Vi Subtitle runs the Whisper AI model locally on your machine. For best performance we recommend Windows with 16 GB RAM and an NVIDIA GPU, or a Mac with Apple silicon.

You can cancel your subscription anytime — no further charges after cancellation. If you run into an issue within 7 days of purchase, contact us at natlan.tech@gmail.com and we'll do our best to help.