Auto Caption Video with AI

Automatically generate and burn captions into your videos using AI-powered speech recognition. Perfect for TikTok, Reels, Shorts, and accessibility.

Caption Style

Preview Style

Your captions will look like this

Drop your video file here (MP4, AVI, MOV, MKV, WebM...)

Maximum file size: 500MB

How to Auto Caption Your Video

1

Style Your Captions

Choose font color, size, outline, position, and words per line. Preview the caption style before uploading.

2

AI Transcription

Upload your video and AI automatically transcribes the speech, generating perfectly timed captions for every word.

3

Download Captioned Video

Download your video with beautiful burned-in captions. Ready to share on TikTok, Instagram, YouTube, and more.

Why Add Captions to Your Videos?

Captions are no longer optional for video content. 85% of social media videos are watched without sound, and captioned videos see 12% more watch time on average. Our AI-powered tool automatically transcribes speech and burns beautiful, customizable subtitles directly onto your video — no manual transcription needed. The result is a ready-to-upload video with professional captions that boost engagement, accessibility, and discoverability.

The Impact of Captions

  • 85% of Facebook and Instagram videos are watched on mute
  • Captioned TikTok videos get up to 40% more views
  • Required for accessibility compliance (ADA, WCAG, Section 508)
  • Boost SEO — search engines can index spoken content via captions
  • Reach non-native speakers and hearing-impaired audiences
  • Increase average watch time and video completion rates

Perfect for Every Platform

TikTok & Reels

Auto-captioned content dramatically outperforms non-captioned videos on TikTok and Instagram. Bold captions grab attention in the feed.

YouTube Videos

Burned-in captions improve retention and accessibility for both Shorts and long-form YouTube content. No relying on auto-generated captions.

Podcasts & Interviews

Make podcast video clips accessible and engaging. Captions help viewers follow along even in noisy environments or on mute.

Courses & Tutorials

Educational content benefits enormously from captions. Students can follow along, review material, and learn in their preferred language.

Frequently Asked Questions

Is this auto caption tool free?

Yes, completely free with no registration required. No watermarks and no hidden fees.

How accurate is the AI transcription?

Our AI uses advanced speech recognition that works well for clear speech in English. Accuracy depends on audio quality, background noise, and accent clarity. Clear recordings produce the best results.

Can I customize the caption style?

Yes! You can customize text color (6 options), font size (16-48px), outline color and width, position (top/center/bottom), and maximum words per line. A live preview shows your style before uploading.

Is my video data secure?

Absolutely. All files are processed on secure servers with encrypted connections and automatically deleted within 24 hours.

Why Use Our Free Tool?

100% Secure

Files are processed securely and automatically deleted after 24 hours

Lightning Fast

Powered by FFmpeg for professional-grade speed and quality

Completely Free

No registration required, no hidden fees, no watermarks

Need More Power?

Process videos at scale with our FFmpeg API. Get $1 free credit on signup and generate 50 videos for just $5.