Need a Free AI Tool for Adding Captions to Short Videos?
Add auto-generated captions to TikTok, Reels, and Shorts using free AI tools that increase watch time.
Next Best Action
Finish this guide, then continue with another AI Video & Audio tutorial to lock in the workflow.
FAQ Highlights
- What caption style works best for short videos?
- How long should captions stay on screen?
Introduction
Adding captions to short videos is no longer optional. Most viewers watch social media videos without sound. Videos with captions have significantly higher watch time and engagement. AI tools can generate accurate captions automatically.
Here are the best free tools for adding captions to your short videos.
Step 1: Use CapCut (Free, Most Popular)
CapCut is the official editing app for TikTok. It has a free, built-in auto-caption feature that is fast and accurate.
- Open CapCut and import your video.
- Tap "Text" then "Auto captions."
- Select the language (English, Spanish, etc.).
- Tap "Generate" and wait a few seconds.
- Review the captions and fix any errors by tapping on individual words.
- Choose a caption style (bubble, karaoke, or classic).
Best for: TikTok and Instagram Reels.
Step 2: Use YouTube Studio Auto-Captions (Free)
If you upload to YouTube, the platform generates captions automatically for all Shorts.
- Upload your Short to YouTube Studio.
- Go to "Subtitles" in the left menu.
- YouTube will have automatically generated captions.
- Review and edit any errors manually.
- The captions will appear on your Short automatically.
Best for: YouTube Shorts.
Step 3: Use VEED.io (Free Web Tool)
VEED.io is a web-based video editor with a generous free tier for captioning.
- Go to VEED.io and upload your video.
- Click "Subtitles" and then "Auto Subtitles."
- Select your video's language.
- Click "Start" and wait for the AI to process.
- Edit the captions, adjust the style, and export.
Free tier limit: 10 minutes of video per month. Good for occasional use.
FAQ
What caption style works best for short videos?
Karaoke-style captions (where each word highlights as it is spoken) are the most engaging. They keep viewers watching to see the next word light up.
How long should captions stay on screen?
Each caption segment should stay on screen long enough to be read twice. For short videos, aim for 2-3 words per segment displayed for 1-2 seconds each.
Related Tutorials
- /tutorial/how-to-generate-subtitles-with-ai
- /tutorial/how-to-use-ai-to-create-youtube-shorts