Auto Captions: AI Teleprompter

Caption any video with on-device AI — fully offline and private. Accurate, word-synced subtitles with styles built for Reels, TikTok, Shorts, and YouTube.

Auto Captions adds accurate, perfectly timed subtitles to your videos — and it works entirely on your device. There is no sign-up, no upload, and no waiting on a server. Your footage never leaves your phone.

Choose a video, tap Generate AI Captions, and on-device AI transcribes the speech, synchronizes every word to the audio, and lets you style the result for Reels, TikTok, Shorts, and YouTube.

WHY CREATORS CHOOSE AUTO CAPTIONS

• Fully offline and private — transcription runs on your device. Nothing is uploaded and nothing is tracked. • Accurate, word-level timing — captions stay in sync with the audio, with optional active-word highlighting. • Automatic language detection — leave it on Auto or select your language. Works across multiple languages. • Styles built for short-form video — Bold, Outline, Minimal, Karaoke, and more, designed to stop the scroll. • A complete caption editor — correct any word, fine-tune timing, change font, weight, color and background, and reposition or resize captions directly on the preview. • Export for every platform — 9:16 for Reels and TikTok, 1:1 for feed posts, and 16:9 for YouTube, in 720p or 1080p MP4. • Saved projects — every captioned video is stored in the app so you can reopen, re-edit, re-export, or share it at any time. • One-tap sharing — send the finished captioned video to any app.

HOW IT WORKS

1. Import a video from your library.
2. AI generates captions automatically, on-device, with no internet connection required.
3. Edit the text, timing, and style until it looks exactly right.
4. Export and share to your favorite platform.

BUILT FOR

Content creators, marketers, educators, podcasters, and anyone who wants captioned video without subscriptions, watermarks, or sending private footage to the cloud.

PRIVACY FIRST

Auto Captions performs all transcription and rendering on your device. No account is required, your media is never uploaded, and no internet connection is needed to caption a video.

Download Auto Captions and start turning your videos into polished