See Foreign Videos in Your Language
Your Data Stays Local
Your video and audio stay on your computer. NexSub processes them locally instead of sending your media to a cloud AI service.
Real-Time Subtitles
Capture system audio and generate translated subtitles while you watch YouTube, streams, meetings, courses and other content.
Buy Once, Use It
No monthly AI bill and no recurring subscription. Get the lifetime license for $19.
Translate the content you actually want to understand.
Watch foreign YouTube videos, courses, streams and other content when translated captions are unavailable.
Translate local video files without sending audio or video to an online service.
Keep meetings, training videos and sensitive media on your own PC.
From audio to translated subtitles in real time.
Listen to the audio
NexSub captures the audio output from your Windows system while you play the content.
Transcribe with local AI
Speech recognition runs locally using the AI models bundled with NexSub.
Show translated subtitles
The translated result appears as subtitles while you continue watching.
100+ Languages
Powered by local AI models
NexSub is designed for multilingual video content, covering major world languages and a broad range of regional languages and accents.
Your GPU. Your AI. No Cloud.
NexSub runs on Windows 10/11 with a GPU that provides at least 8 GB of VRAM. Intel, AMD and NVIDIA GPUs are supported. An RTX 3060, RTX 4060 or higher is recommended for a smoother real-time experience.
See NexSub on Your Desktop
Powerful AI. No Cloud Required.
Download NexSub for free and experience real-time translated subtitles powered by your own PC. 8 GB+ VRAM · Intel / AMD / NVIDIA · $19 lifetime.