Captions AI Subtitle Generator

Add captions to any video with AI — 100% offline on your device. Karaoke word highlighting, custom styles, logo overlay & SRT export. Perfect for Reels, TikTok & YouTube.

Add professional captions to any video — entirely on your device.

AUTOMATIC TRANSCRIPTION Import a video and let the built-in Whisper AI transcribe speech to text in seconds. Everything runs locally on your iPhone — your videos never leave your device.

WORD-LEVEL KARAOKE HIGHLIGHTING Watch each word light up as it's spoken with smooth karaoke-style animation. Perfect for social media content that grabs attention.

FULLY CUSTOMIZABLE STYLES • Choose from beautiful preset styles or create your own • Adjust font, size, color, background, and position • Add text animations and effects • Drag to reposition captions anywhere on screen

PROFESSIONAL EXPORT • Export in high quality with captions burned into the video • Import and export SRT subtitle files • Add your own logo or watermark overlay • Perfect for Instagram Reels, TikTok, YouTube Shorts, and more

EDIT WITH PRECISION • Edit transcript text directly • Split and merge caption segments • Undo/redo support for worry-free editing • Copy full transcript to clipboard

100% OFFLINE & PRIVATE No internet connection needed. No cloud processing. No account required. Your content stays on your device.

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