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Free Facebook Caption Generator

Describe your post, pick a tone and a length, and get three Facebook captions that give your followers something to reply to. Copy one, or post it with Posttyy.

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How to write a Facebook caption with AI

  1. 1

    Describe your post in a few words.

  2. 2

    Pick a tone, a length and how many hashtags.

  3. 3

    Press Generate captions and get three to choose from.

  4. 4

    Copy one, or press Use in Posttyy to schedule it to your Page.

Short or long: pick per post

The same post, a new Lisbon travel guide, at each length.

  • ShortWhen the photo says it allThe Lisbon guide is out. Where should I go next?
  • MediumFor news and everyday postsSeven days, six neighbourhoods, and far too many pastries. The full Lisbon guide is out today. Which do you prefer: a city break or a week by the sea?
  • LongFor stories your regulars will readA year ago I had 900 followers and a job I didn't like. Lisbon was the first trip I paid for with this page. I spent seven days there on $600. I walked everywhere, ate where the queues were, and wrote down every price. No sponsored stays, because a guide is only useful if it's honest. The full guide is out today. What's the trip you still talk about years later?

Captions that start a conversation

Facebook shows more people the posts that get them talking. Your caption is where the conversation starts.

Talk to people who know you

Most people who see your Page's posts already follow it: customers, neighbours and regulars. Write to them the way you'd talk at the counter, not like an advert. A plain, warm caption gets more replies than a polished one.

Ask something people want to answer

A real question ("dark oil or light?") gets comments, and comments show your post to more people. Skip "like and share" or "tag a friend": Facebook shows posts that beg for reactions to fewer people.

Put the best line first

The feed shows a few lines, then “See more”. Make the first line worth reading on its own. One or two hashtags are plenty on Facebook. Need a photo to go with it? The free Facebook photo resizer crops it to the right size.

Questions, answered

How does the Facebook caption generator work?

Describe your post, then pick a tone, a length and how many hashtags you want. The generator uses AI to write three captions, each with a different angle. Copy the one you like and change anything that doesn't sound like you.

How long can a Facebook caption be?

Facebook allows over 60,000 characters in a post, but the feed shows only the first few lines before "See more". Short posts often get the most reactions, and longer stories work when the first line pulls people in.

Should I use hashtags on Facebook?

One or two that describe the post can help people find it, but they matter much less than on Instagram or TikTok. The generator starts on 1–2, and you can choose none.

What makes a good Facebook caption?

A first line worth reading, words that sound like you, and a reason to reply: a question, an opinion to share, or a story people can add to.

Does it work for business Pages?

Yes. Describe what you are posting about, such as a new product, an event or behind the scenes, and the captions speak to your customers.

Is the Facebook caption generator free?

Yes. It is free, with no login and no sign-up. To keep it free for everyone, each person can write up to 30 sets of captions a day.

What happens to what I type?

Your description is sent to OpenAI, whose AI writes the captions. Posttyy doesn't save your description or the captions.

More free tools

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Create and schedule your post with Posttyy

Add your photo and your new caption, pick a time, and Posttyy publishes it to your Facebook Page for you.

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7 days free, then from $19 a month.