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.
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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.