Hook, value, call to action
Line one names the result (“Brows that last 6 weeks”), the middle explains how, the last line asks for one action.
Free AI tool
Free Instagram caption generator
Tell the AI what is in the photo or Reel: get three captions with a hook in the first line and 3–5 hashtags that fit your niche.
- Hook within the first 125 characters
- Fits the 2,200-character caption limit
- 3–5 relevant hashtags, not a wall of 30
How it works
Ready in three steps
- 1Describe the photo or ReelWhat is in the frame, what you sell and what you want people to do: save, comment, book or buy.
- 2Choose the toneFriendly for a coffee shop, calm and expert for a clinic, playful for a pet store. The first line changes with it.
- 3Pick a variant and postCheck that the hook reads well on its own, because that is all people see before “more”.
Formulas
What makes it work
Keywords beat hashtags for search
Instagram search reads the caption text. Write “manicure in Austin” in plain words, then add 3–5 hashtags at the end.
Links do not click in captions
Say “link in bio” or “write GUIDE in the comments” and send the link by DM. A comment that asks for a word also lifts engagement.
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Examples
Written with the generator
Nail studio
Your manicure should survive a week at the beach. Ours does: gel coat, 3 weeks, no chips. Free slots Thursday and Friday. Book via the link in bio. #nailsaustin #gelmanicure #austinnails
Bakery
We sold out of cardamom buns by 10 a.m. three days in a row. Tomorrow we bake a double batch. Comment BUN and we will hold one for you until noon.
Generators for every network
Questions
How long should an Instagram caption be?
Anything up to 2,200 characters, but only about 125 show before “more”. Short captions suit Reels; longer ones work for carousels that teach something.
How many hashtags does the generator add?
3–5, in line with Instagram’s own advice. Mix a broad tag, a niche tag and a local one if you serve a city.
Can it write captions for carousels and Reels?
Yes. Mention the format in the description: a carousel caption can tease the slides, a Reel caption backs up the video hook.
Can I add emojis?
Ask for them in the description or add your own. One or two emojis as markers read better than a row of them.
Can AI SMM publish the caption to Instagram for me?
Yes. AI SMM publishes feed posts, carousels, Reels and Stories on schedule and shows reach and engagement for each post.