Generate captions with AI from video (for TikTok, Reels & Shorts)

The ability to generate captions with AI from video solves one of the most time-consuming steps in content creation: turning spoken ideas into written copy that performs. A great caption does more than describe what happened in a clip. It hooks the reader, delivers value, and drives action — whether that means a save, a share, or a follow. Doing this manually means rewatching footage, scribbling notes, drafting multiple hook variations, and editing for tone. Multiply that by five posts per week across TikTok, Instagram Reels, and YouTube Shorts, and caption writing alone becomes a part-time job. AI caption generation works differently. It processes the video audio, extracts the core message and supporting points, then structures them into material you can reshape into platform-specific captions. The key is starting from an accurate extraction rather than a blank page. Subtitles add another layer: they provide exact quotes and phrasing you can weave into your copy for authenticity. Combined with translated subtitle tracks, you can produce captions in multiple languages from a single recording session. ReelExtract delivers both the AI summary and SRT subtitles together, giving you the raw ingredients for captions that sound intentional rather than auto-generated.