Capnivo

Capnivo adds captions to short-form vertical video. You upload a clip, such as a phone recording, podcast segment, webinar cut or founder video. Capnivo transcribes it, sets the caption timing and line breaks, and detects the spoken language. Then you export a 9:16, 1080p MP4 for TikTok, Instagram Reels or YouTube Shorts.

All editing happens in one clip editor. You can fix any word in the transcript, pick from 12 caption style presets, adjust colors, sizing, emphasis and layout, and move captions around the screen. You can also trim the clip, cut silent pauses automatically, and preview every change before you export. Saved brand presets keep fonts and colors the same across a team's posts.

Capnivo is built for creators, agencies, social media managers, founders, podcasters and video editors who want captioned shorts without learning a full timeline editor. You can start for free, and no credit card is needed.