Caption Generator — AI Live Caption Generator for Streams
Need a caption generator for your live stream? StreamTranslate generates real-time AI captions + translated subtitles for any stream.
Start Translating Your Stream →Last updated: March 23, 2026
Quick Answer
A caption generator creates text captions from spoken audio. StreamTranslate is an AI-powered caption generator built for live streams — it generates real-time captions and translates them into 28+ languages via an OBS overlay.
What Is a Caption Generator?
A caption generator converts spoken audio into text captions. For live streaming, this means real-time speech-to-text that appears on your stream as you speak. Caption generators use speech recognition AI to transcribe audio with high accuracy.
Modern AI caption generators like StreamTranslate go beyond simple transcription — they also translate captions into multiple languages, making your content accessible to global audiences.
Caption Generator for Live Streaming
Most caption generators are designed for pre-recorded video. Live streaming requires a different approach:
- Real-time processing — Captions must appear within seconds, not minutes.
- Continuous operation — Must run for hours without interruption.
- OBS integration — Captions need to appear on the stream itself.
- Translation — International audiences need captions in their language.
StreamTranslate handles all of these requirements.
How StreamTranslate's Caption Generator Works
StreamTranslate generates captions in three steps:
- Listen — AI listens to your microphone via the browser.
- Generate captions — Deepgram AI transcribes your speech in real time.
- Translate & display — Captions are translated into your chosen languages and displayed on your OBS overlay.
Setup takes 2 minutes. Try it free →
Frequently Asked Questions
What is the best caption generator for streaming?
StreamTranslate — it generates real-time AI captions and translates them into 28+ languages via an OBS overlay.
Can I use a caption generator on Twitch, YouTube, X, and TikTok?
Yes — StreamTranslate works as an OBS Browser Source, so captions appear on your Twitch, YouTube, X, and TikTok stream for all viewers.
StreamTranslate Team
Published by the StreamTranslate team. We build real-time live stream translation tools for Twitch, Kick, and YouTube, X, and TikTok streamers.
Reach every viewer, regardless of language
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