Auto captions from video
Upload a video or audio file, analyze speech in your browser, and preview timed captions on your clip.
Open toolAI captions
Analyze video & generate captions
Upload a video or audio file. We run speech recognition in your browser (Whisper) and show timed captions on the preview. First 60s of audio are analyzed.
FAQ
How do captions get generated?▼
After you upload a file, we run a speech-recognition model (Whisper) in your browser. It listens to the audio and produces timed caption lines you can preview on the video.
How long can the clip be?▼
Analysis uses up to the first minute of audio from the start of your file. Longer files are trimmed for transcription only.
Is my file uploaded to your server?▼
No. Processing happens locally in your browser.