Captions styled and burned in by your browser
Instant AI Auto-Subtitles & Viral Captions
Automatically generate word-by-word animated captions for your Shorts, Reels, and TikToks. Choose between Viral Yellow, Neon Glow, and Cyber Box presets.
Open the StudioViral Style Presets
One-click presets with active word highlights, drop shadows, and high-contrast bounding boxes.
Inline Text Editor
Easily tweak words, correct spellings, and sync timestamps directly from the timeline.
Where your file goes
Your browser separates the audio track and sends only that to OpenAI Whisper, over an encrypted connection, to be transcribed. The video itself never leaves your device, and nothing is kept by us. Styling, timing, burn-in and export all happen locally.