"write my bio" prompt → "cold email" name: serge </> skill.md { run() }
MK
Marketing & Growth
Campaigns, SEO, Ads
LG
Legal & Finance
Contracts, CFO, Tax
Skill .md
For any AI
SK
AI Agents
End-to-end tasks
AG
Your inputs

Your captions will appear here.
Add a topic and click Generate.

Posting more than once a week?
Get an AI social media manager that plans your whole calendar.
Maya, the Social Media Manager Skill, turns Claude, ChatGPT, or any AI chat into a content partner that plans, writes, and schedules across platforms — not just one caption at a time.
See the Social Media Manager Skill →

What is a free caption and hashtag generator?

This free caption and hashtag generator turns one video or post idea into four caption styles — short & punchy, storytelling, question-based, and CTA-driven — plus a tiered hashtag strategy (broad reach, niche, branded) sized for TikTok, Instagram, or YouTube Shorts.

Most caption tools give you one generic line and a copy-pasted "best hashtags 2025" list. This tool matches hashtag count to platform norms and always includes a mix of broad and niche tags, because broad-only hashtags get buried and niche-only tags cap your reach.

Why four caption styles

Different captions serve different goals: short & punchy for scroll-stopping, storytelling for watch time, question-based for comments, CTA-driven for saves and follows. Picking the right one for your posting goal matters more than picking the "best" caption in isolation. For ongoing content calendars and full social strategy across platforms, a dedicated social media management skill goes further than a one-off caption generator.

Like this free tool? Get the full Claude skill.
A ready-to-load skill that does this and far more — 290+ roles for Claude & ChatGPT.

See the Social Media Manager Skill → All skills All prompts