Formats

Auto captions for Instagram Reels and YouTube Shorts

CaptionStudio is an auto caption tool for Instagram Reels and YouTube Shorts. You upload a vertical video, get a word-level transcript, style the line, and export from https://captionstudio.io.

What the caption looks like

Lines are short on purpose, a few words at a time, because a 9:16 frame has no room for a paragraph. Each word has a start and end time, so the line can pop on the beat instead of sitting as a static subtitle.

Styles include stacked pop, karaoke, pills, highlighters, and a plain lower-third. You can move the caption and change the size before export.

Language

Reels in India are often Hinglish. Use the Hinglish captions mode for mixed Hindi–English. Hindi, English, Spanish, Tamil, and auto-detect are in the same uploader.

Export

Free is ₹0. It includes 1 video per day, videos up to 1 minute, the full editor, and a watermark on export. Creator is ₹299 per month, or ₹2,688 per year (₹224 per month). It includes unlimited videos up to 3 minutes and export without a watermark. Pro Max is ₹499 per month, or ₹4,680 per year (₹390 per month). It includes unlimited videos up to 5 minutes and export without a watermark.

Start free, then read how auto captions work if you want the step-by-step before you upload.

Questions

Can I caption a Reel without a desktop editor?

Yes. CaptionStudio runs in the browser. Upload the vertical video, edit the words, and export. There is no install.

Does it support 9:16?

Yes. The studio frames captions for 9:16 Reels and Shorts, and also for 16:9, 1:1, and 4:5.

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