AI Captions & Emojis

97% accuracy captions synced to the millisecond. Animated styles, intelligent emoji overlays, and 50+ languages. Make your content accessible and engaging—automatically.

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The Problem: 85% Watch on Mute

Most people scroll with sound off. No captions = no engagement. They scroll past before they even know what you're talking about. Captions aren't optional anymore—they're essential.

Sintorio adds captions automatically. Perfectly synced, beautifully styled, with smart emojis that boost engagement. All in seconds, not hours.

Why Captions Are Non-Negotiable

85%

of Facebook videos are watched without sound. Similar stats across all platforms.

+40%

increase in watch time for videos with captions vs without.

+26%

higher engagement rate on captioned content across social platforms.

466M

people worldwide are deaf or hard of hearing. Captions make content accessible.

Caption Styles That Convert

💥

Bold Pop

Large, punchy text with word-by-word highlighting. Maximum impact for hooks and key moments.

EVERY word pops
🎤

Karaoke

Words highlight as they're spoken. Perfect for podcasts, songs, and speeches.

Words light up live
📝

Minimal

Clean, subtle captions for a professional look. Great for corporate and educational content.

Clean and professional

Full customization: Custom colors, fonts, sizes, positioning, backgrounds, and animations. Match your brand perfectly.

Smart Emoji Overlays

AI understands context and adds emojis at the perfect moments:

😂

Laughter Detection

AI detects laughter in audio and adds 😂 at the right moment.

🔥

Hype Moments

Excitement, emphasis, and high-energy moments get 🔥 overlays.

😮

Shock & Surprise

Plot twists, reveals, and "wait what?" moments get reaction emojis.

💯

Emphasis

Strong statements and truths get reinforced with relevant emojis.

50+ Languages Supported

Automatic Language Detection

AI automatically detects the spoken language and generates accurate captions. No need to specify—just upload.

EnglishSpanishFrenchGermanPortugueseItalianDutchPolishRussianJapaneseKoreanChineseArabicHindi+40 more

Key Features

  • 97% Accuracy: Industry-leading transcription quality powered by advanced AI.
  • Millisecond Sync: Captions appear exactly when words are spoken—never early or late.
  • Animated Styles: Bold Pop, Karaoke, Minimal, and more—all proven to boost retention.
  • Smart Emojis: Context-aware emoji overlays that enhance engagement.
  • 50+ Languages: Automatic detection and transcription in over 50 languages.
  • Full Customization: Fonts, colors, sizes, positioning—match your brand exactly.

Make Every Video Accessible

AI Captions are included on every plan. Beautiful, accurate captions in seconds.

Add Captions Now

Why Use This Feature

97% Accuracy

Industry-leading transcription powered by advanced AI. Your captions are always correct and readable.

Animated Styles

Bounce, fade, typewriter, karaoke—choose styles proven to increase watch time and engagement.

Smart Emoji Sync

AI adds relevant emojis that sync with your speech. 😂 appears when there's laughter. 🔥 on hype moments.

Ready to Get Started?

Join creators who are already using Sintorio to transform their content.