AI Caption Generator
Write engaging captions for any social post in seconds. Pick a tone and platform, and AI delivers a hook, body, and call-to-action.
How to use the AI Caption Generator
- 1
Describe what your post is about — the photo, video, product, or moment.
- 2
Choose the platform and the tone that fits your brand (casual, professional, funny, and more).
- 3
Click “Generate Caption” to get a hook, body, and call-to-action with natural emojis.
- 4
Copy your favorite version and tweak it to sound exactly like you.
Social Media Specs & Character Limits
Optimal text formatting, length guidelines, and parameters for all major platforms:
| Platform | Max Length | Ideal Length | Hashtag Policy |
|---|---|---|---|
| Instagram Feed & Reels | 2,200 chars | 125 - 150 chars | 3 - 5 tags (Recomm.) |
| TikTok Posts | 4,000 chars | 100 - 200 chars | 3 - 5 tags (Ideal) |
| YouTube Description | 5,000 chars | 1,500 chars (SEO) | 3 - 10 tags |
| X / Twitter Post | 280 chars | 100 - 140 chars | 1 - 2 tags |
| LinkedIn Articles & Posts | 3,000 chars | 500 - 1,000 chars | 3 - 5 tags |
Frequently Asked Questions
What makes a good social media caption?▼
A strong caption opens with a hook in the first line, adds value or a story in the body, and ends with a clear call-to-action. Our AI structures every caption this way.
Can I choose the tone of voice?▼
Yes. Pick from casual, professional, funny, inspirational, bold, or friendly so the caption matches your brand personality.
Which platforms are supported?▼
Instagram, TikTok, Facebook, LinkedIn, Twitter/X, and YouTube. Select your platform and the caption length and style adapt automatically.
Is the caption generator really free?▼
Yes — generate as many captions as you like, free, with no account required.