Tap Start and just talk — in 한국어 or English.
Each phrase is transcribed with Whisper and shown in both languages,
streaming in as you speak.
둘 다 · Both
A mobile, real-time subtitle booth. Speak Korean or English; Whisper transcribes
each chunk and it's mirrored into the other language live. Built on
EffectEffect Stream@effect/ai-openai.
Your key stays in this browser (saved to localStorage) and calls
api.openai.com directly — nothing is sent to any other server. Use a key with a
low spend limit. Get one at
platform.openai.com.