How to Add Captions to a Video — 3 Steps
Drop Your Video File
Drag and drop any MP4, MOV, or MKV file into VideoToCaptions. Your video stays on your device — it is never uploaded to any server. This means complete privacy and instant processing.
Supported: MP4, MOV, MKV up to 2 minutesAI Generates Captions Automatically
OpenAI Whisper AI transcribes your audio in seconds with word-level timing. Review the captions, edit any text, merge or split segments, and choose from 5 viral caption styles or fully customize fonts, colors, and effects.
5 presets: Subtitle, Karaoke, Loud Karaoke, Loud Pop, StaticDownload Your Captioned Video
Export an HD MP4 with captions permanently baked into the video. No watermark, no branding, no account needed. Upload directly to TikTok, Instagram Reels, YouTube Shorts, or any platform.
Clean HD export, ready to upload anywhereWhy Add Captions to Your Videos
Boost Engagement
85% of social media videos are watched on mute. Captions keep viewers watching and dramatically increase watch time and engagement rates.
Go Viral
Styled captions are the signature of viral content on TikTok and Reels. Karaoke-style word highlights and bold pop effects grab attention instantly.
Improve Accessibility
Captions make your content accessible to the deaf and hard-of-hearing community, plus non-native speakers. Reach a wider, more diverse audience.
Algorithm Friendly
Social media algorithms prioritize captioned content. Adding captions signals quality and helps platforms understand and recommend your video.
Everything You Need to Add Captions
No Watermarks
Every export is clean. No logos, no branding.
No Account
No signup, no email. Just drop and caption.
100% Private
Video never leaves your device.
5 Viral Styles
Karaoke, pop, bold, subtitle, static.
19 Google Fonts
Full font customization.
Word-Level Timing
Perfect sync with your audio.
Add Captions for Any Platform
TikTok
Bold, viral-style captions that match trending TikTok aesthetics. Karaoke highlights and pop animations that keep viewers watching.
Instagram Reels
Styled captions perfectly positioned for Reels. Professional look that boosts engagement and follower growth.
YouTube Shorts
Clean, readable captions that make Shorts stand out. Word-level timing for perfect audio sync.
Add Captions Now
Drop your video. AI adds captions in seconds. Download clean HD video. No signup, no watermarks.
Add Captions for FreeFrequently Asked Questions
How do I add captions to a video for free?
Use VideoToCaptions: drop your video file in, let AI generate captions automatically, customize the style, and download your video with captions baked in. No signup, no watermarks, 100% free.
Can I add captions without uploading my video?
Yes. VideoToCaptions processes everything in your browser. Your video file never leaves your device, making it completely private and secure.
What video formats are supported?
VideoToCaptions supports MP4, MOV, and MKV video formats. It works best with short-form content up to 2 minutes, perfect for TikTok, Reels, and Shorts.
Can I customize how the captions look?
Yes. Choose from 5 one-click viral presets or fully customize fonts (19 Google Fonts), colors, stroke, shadow, background, text transform, and positioning.
Do the captions have a watermark?
Never. Every export from VideoToCaptions is completely clean with no watermarks, no branding, and no logos. This is true for all users, free forever.