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Add accurate, timed subtitles to any video in seconds with AI. Upload a clip, pick a style — word-by-word, karaoke-highlight, scrolling, or classic — and download a captioned video ready for TikTok, Instagram Reels, YouTube Shorts, LinkedIn, or Twitter/X. Auto-detects speech in 80+ languages with high accuracy. Built for creators, marketers, educators, and accessibility-conscious publishers.
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MP4, MOV, WebM supported (max 500MB)
Standard - at bottom of video
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Captions will be burned into the video
- Use "Word by Word" style for maximum engagement
- Keep videos under 60 seconds for best results
- Vertical (9:16) format works best for TikTok & Reels
- Clear audio produces more accurate captions
Flixly's AI Auto Captions tool automatically transcribes speech in your video and renders accurate, timed subtitles directly onto the footage. Upload a clip, choose a caption style (word-by-word, karaoke-highlight, scrolling, or classic), and download the captioned video ready for TikTok, Reels, or YouTube Shorts.
Auto Captions supports 80+ languages including English, Spanish, French, German, Italian, Portuguese, Japanese, Korean, Mandarin Chinese, Arabic, Hindi, and Russian. The speech-to-text model auto-detects the spoken language unless you override it.
Flixly runs on pay-as-you-go credits. You get 10 free credits on signup, and captioning a short clip typically costs only a few credits. No monthly subscription required.
Yes. Pick from preset styles — word-by-word, karaoke-highlight, scrolling, and classic — and tune font, size, color, and outline to match your brand. Great for TikTok, Instagram Reels, YouTube Shorts, and LinkedIn video.
Yes. The AI handles long-form content, though very long videos are chunked for reliability. Short-form content under 60 seconds is fastest and works best for social media.