Try it now, no signup
Upload a file, record live, paste a link, or import from your cloud, then watch it transcribe.
RealtimeVoiceKIT is an auto subtitle generator that creates time-coded subtitles from any audio or video in your browser, powered by leading frontier AI from OpenAI, Anthropic, and Google. Drop in a file and get accurate subtitles with speaker labels, confidence scores, and export to SRT, VTT, or TXT.
What people subtitle
Online courses
Auto-generate subtitles so every lesson is searchable and accessible.
Webinars
Add time-coded subtitles to recorded talks in a few minutes.
Interviews
Subtitle conversations with clear speaker labels for each line.
Product videos
Generate subtitles that lift watch time and on-screen clarity.
What's included
How to auto-generate subtitles
Upload your file
Drag in audio or video, or paste a link. No account hoops.
Generate subtitles
The AI transcribes, labels speakers, and time-codes every line.
Export
Download SRT, VTT, or TXT, or translate the subtitles first.
Frequently asked questions
Is the auto subtitle generator free?
Yes. You get 10 free minutes every month with no credit card, and subtitle export is included.
Can I edit the subtitles before export?
Yes. Use the built-in editor to fix wording or timing, then export to SRT or VTT.
Which AI powers it?
RealtimeVoiceKIT is powered by leading frontier AI from OpenAI (ChatGPT), Anthropic (Claude), and Google (Gemini).
What languages are supported?
Subtitles generate in 100+ languages, and you can translate them before you download.