Facebook caption generator

Caption options for Facebook, within the 63,206-character limit.

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Facebook caption generator

Describe what you need and the generator drafts caption options, sized to the 63,206-character limit for Facebook.

Facebook caption generator

FreeRuns on your device

Output: 5 caption options, up to 63,206 characters

Tone

The AI model (~627 MB) downloads once, after you confirm, and runs on your device. Nothing you type is uploaded.

Written by an open-source AI model (Qwen3 0.6B, Apache-2.0) in your browser. Check facts and names before you post.

How it works

  1. Describe it
    Fill in what the post is about, tone, call to action.
  2. Generate options
    Get several captions written for Facebook.
  3. Pick, edit and use
    Choose one, make it yours and paste it into Facebook.

What Facebook allows

A Facebook post can run to 63,206 characters, but longer posts are cut with "See more" at a point that moves between desktop, tablet and mobile.

Facebook formats to write for

Page or profile post

Up to 63,206 characters and 10 images; longer text is cut with "See more".

Group post

Where conversations happen; members reply under each post.

Reel

Vertical video with a caption whose first lines show before "See more".

Story

1080 x 1920, full screen.

Examples for Facebook

Templates with [placeholders] to fill in with your own details.

Two-line hook

The reason to tap "See more" in the first two lines.

Question

A question members can answer.

Event

What, when, where and how to join.

What makes a strong caption on Facebook

Lead with the hook inside the visible part, give the context in short lines, and close with one action: comment, save or follow.

Angles the generator offers

Hook first

The line before the cut does the work.

Short lines

Easy to read on a phone.

One clear ask

A question or an action.

Tags at the end

Hashtags never push the hook down.

Finish polishing before you publish

Your caption is ready. Now get the result.

Good copy earns the first look. Real reactions and comments are what grow the post.

Get real reactions on your post

Frequently asked questions

What does a strong Facebook caption give?

It grows the account, but you need the right tool.

How long should a caption be?

Long enough to give context, with the hook inside the part the feed shows.

What does Facebook allow for captions?

A Facebook post can run to 63,206 characters, but longer posts are cut with "See more" at a point that moves between desktop, tablet and mobile.

Where does Facebook add "See more"?

It depends on the screen width; desktop, tablet and mobile cut in different places.

Is the Facebook caption generator free?

Yes. It is free to use on this page, with no sign-up.

What are Facebook group posts?

Where conversations happen; members reply under each post.

How long can a Facebook post be?

63,206 characters; longer posts are cut with "See more" at a point that depends on the screen.

Where do Facebook conversations happen most?

In groups, where members reply under each post.

How many images can a Facebook post have?

Up to 10 images of 4 MB each, or one video up to 4 GB; images and video cannot be mixed.

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