Live captions
Capture audio from the tab you select and update captions continuously with the local GPU.
Any Subtitle
Give videos without captions a local subtitle track.
Accurate captions
Use accessible audio and a larger Whisper model, then synchronize the result to the player timeline.
Data stays local
No cloud speech recognition, ads, analytics, or telemetry. Accurate tracks are cached for seven days.
Windows Local Core required
The extension captures and displays captions. The free Any Subtitle Local Core runs FFmpeg, yt-dlp, and CUDA Whisper. Windows 10/11, an NVIDIA GTX/RTX GPU, and about 5 GB are required.