How to Add Subtitles to YouTube Shorts (Free Guide)

YouTube Shorts are consumed in the same scroll-and-swipe pattern as TikTok and Reels. Most viewers are on their phone, often in public, and frequently have sound off.

YouTube's algorithm prioritizes watch time and engagement. Shorts with captions keep viewers watching longer because they can follow the content regardless of their sound setting. This directly impacts how many people YouTube shows your Short to.

YouTube automatically generates captions for Shorts, but they have significant limitations:

- Auto-captions are off by default — viewers have to manually enable them - Accuracy varies widely, especially with accents, music, or fast speech - You can't control the font, size, color, or position - They're not visible in the Shorts feed scroll preview

Burned-in subtitles are visible immediately, look exactly how you designed them, and work even when the Short is shared outside YouTube (WhatsApp, Twitter, etc.).

1. Record your Short (vertical 9:16 video, up to 60 seconds) 2. Open cliputils.com/tools/subtitle-generator 3. Upload your video file — it stays in your browser 4. Click 'Generate Subtitles' to auto-transcribe 5. Edit any mistakes in the generated text 6. Choose your subtitle style: font family, style (bold/italic), color, size, and position 7. Click 'Burn Subtitles into Video' 8. Download the finished video 9. Upload to YouTube as a Short

Font: Arial Bold or Impact — both are highly readable on mobile Color: White (classic) or Yellow (stands out more on bright backgrounds) Size: Large — Shorts are viewed on phones where small text is unreadable Position: Center or lower-center — the YouTube Shorts UI covers the very bottom of the screen with the subscribe button and description

Avoid placing text in the top 15% (title bar) or bottom 20% (buttons and description) of the frame.

Keep each subtitle line to 3-5 words. YouTube Shorts are fast-paced and vertical — long lines either get too small or overflow the screen.

Match subtitle timing to your natural speech cadence. The AI handles this automatically, but review if you have quick cuts.

Use consistent styling across all your Shorts. This builds your channel's visual identity and makes your content instantly recognizable in the feed.

Consider using a slightly larger font size than you think you need. Shorts are always viewed on phones, and what looks readable on your computer monitor may be tiny on a phone screen.