Free Instagram SEO caption tool

Instagram search reads your caption. Describe your post, add the keywords people search for, and get captions that put those words where Instagram looks for them.

Generated with AI. Check facts and edit to fit your voice before you post.

How to use it

  1. Pick a tone that sounds like your brand.
  2. Describe the post in a sentence: what it shows and what kind of post it is (Reel, carousel, photo).
  3. Add the words your audience would type into Instagram search, starting with the most important one.
  4. Generate, pick your favourite caption and adjust it to your voice.

Tips

Put the main keyword early

Use your most important keyword in the first line of the caption. It's the part people see before they tap “more”, and it helps Instagram understand the post.

Say it like a person would search it

“Vegan brunch Limassol” beats “plant-forward culinary experience”. Use the plain words your customers use.

Keep hashtags few and specific

Instagram allows up to 5 hashtags per post. Choose specific ones that match your keywords rather than huge generic tags.

Add alt text and a clear name

Your profile name, bio and the alt text on images are searchable too. Make sure your main keyword appears there as well.

Questions

What is Instagram SEO?
It's writing your profile and posts so they show up when people search on Instagram. Instagram looks at the words in your caption, name, bio, hashtags and alt text to decide which posts match a search.
How many keywords should I add?
Two or three is plenty. One main keyword and a couple of related ones read naturally; more than that makes captions sound forced.
Can I use these captions on other networks?
Yes. They work well on Facebook and Threads too. With PilotPost you can post the same caption to all of them at once.
Is it really free?
Yes. There's a daily limit so the tool stays fast for everyone, and you don't need an account.

More free tools

Free Instagram SEO caption tool