Try it now, no signup
Upload a file, record live, paste a link, or import from your cloud, then watch it transcribe.
RealtimeVoiceKIT is a caption generator that turns any audio or video into accurate, time-coded captions in your browser, powered by leading frontier AI from OpenAI, Anthropic, and Google. Upload a file and get captions with speaker labels, confidence scores, and export to SRT, VTT, or TXT.
What people caption
Marketing videos
Add captions that keep viewers watching with the sound off.
Podcasts
Generate captions for video podcasts and audiograms in minutes.
Team meetings
Caption recorded calls so everyone can read along later.
Tutorials
Make how-to videos clearer with accurate on-screen captions.
What's included
How to generate captions
Upload your file
Drag in audio or video, or paste a link. No account hoops.
Generate captions
The AI transcribes, labels speakers, and time-codes every caption.
Export
Download SRT, VTT, or TXT, or translate the captions first.
Frequently asked questions
Is the caption generator free?
Yes. You get 10 free minutes every month with no credit card, and caption export is included.
Can I get captions for live audio?
Yes. RealtimeVoiceKIT does real-time streaming, so captions appear as you speak.
Which AI powers it?
RealtimeVoiceKIT is powered by leading frontier AI from OpenAI (ChatGPT), Anthropic (Claude), and Google (Gemini).
What export formats do I get?
Export captions as SRT or VTT for video, or as plain TXT for a transcript.