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Upload a file, record live, paste a link, or import from your cloud, then watch it transcribe.
Section 508 captions are accurate, time-coded captions that make video accessible to people with hearing disabilities, and RealtimeVoiceKIT helps you create them in your browser, powered by leading frontier AI from OpenAI, Anthropic, and Google. Generate SRT or VTT, review confidence scores, and edit every line before you publish.
Who relies on it
Federal agencies
Caption public video so it is accessible to every viewer.
Contractors and vendors
Deliver captioned media that meets accessibility requirements.
Universities
Caption lectures and course media for accessible learning.
Public services
Provide readable captions for announcements and recordings.
What's included
How to caption for accessibility
Upload your video
Drag in the file or paste a link. No account hoops.
Generate and review
The AI captions each line and shows confidence so you can verify.
Edit and export
Fix any word in the editor, then export SRT or VTT.
Frequently asked questions
Can I start for free?
Yes. You get 10 free minutes every month with no credit card, and editing and SRT and VTT export are included.
How accurate are the captions?
Captions are AI-generated with per-segment confidence scores, and you can edit any line in the browser before you publish.
Which AI powers it?
RealtimeVoiceKIT is powered by leading frontier AI from OpenAI (ChatGPT), Anthropic (Claude), and Google (Gemini).
Can I caption in multiple languages?
Yes. Caption in 100+ languages and translate captions into another language before you export them.