Browser-based tool for generating and editing multilingual video captions, exporting subtitles, styling captions, and reframing videos for social platforms.

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AutoCaption.app is an AI video caption generator for creating editable, timestamped captions in more than 40 languages. Upload a video, review and edit the transcript in a synchronized timeline, then export subtitles as SRT or VTT files or create a video with styled captions. Caption styles include options for social videos, such as karaoke and text-behind-subject effects. The platform also offers tools to reframe horizontal video into vertical or square formats, create video thumbnails, translate subtitles, and convert or adjust subtitle files. AutoCaption.app supports workflows for creators publishing videos on platforms such as TikTok, Instagram Reels, and YouTube Shorts.

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