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Free AI LinkedIn Caption Generator
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Free AI LinkedIn Caption Generator

Upload your image, pick a tone, and get a LinkedIn caption with a hook that survives the “…more” cutoff. Built by Cloud Campaign, the social media platform for agencies.

e.g. Photo of our client's team at the conference booth, announcing a new integration, confident but not salesy
linkedin

Free to use · No account needed · Add your email to have your captions sent to you

Writing these for clients every week? Cloud Campaign schedules and publishes to LinkedIn. Try it free for 14 days

How to generate LinkedIn captions

1

Upload the photo or graphic

Drop in the image for the post if you have one. The generator analyzes it and writes from what it sees, so a written prompt is optional. A line of context makes the caption sharper.

2

Add the website and pick platforms

Paste the brand's website URL and the generator pulls extra context for a more precise brand voice. Then select every platform you want a caption for.

3

Set tone, length, hashtags, and emojis

Choose a tone and a length, then set how you want hashtags and emojis handled. The generator follows those preferences on every platform.

4

Get one caption per platform

A caption tailored to each platform you selected appears in seconds. Add your email if you want them sent to you so nothing gets lost.

How to write LinkedIn captions that get engagement

The first two lines are the whole pitch

LinkedIn cuts the post at roughly 210 characters. Write those lines as a standalone hook (a specific number, a contrarian take, or the outcome) and earn the click on “…more.”

One idea per line

Short lines with white space between them read faster on mobile and signal confidence. Long paragraphs get skimmed and skipped.

Close with a reason to comment

Comments in the first hour decide distribution. End with a question that invites people to share their own experience, not to agree with yours.

LinkedIn post limits at a glance

Maximum post length

3,000 characters

Shown before “…more”

~210 characters on desktop, ~140 on mobile

Engagement sweet spot

900–1,500 characters for text posts

Hashtag limit

None

Hashtags that perform

3–5, placed at the end

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Questions, answered

Is the LinkedIn caption generator really free?

Yes. It's free to use and there is nothing to install. Generate your first captions without an account; after that we ask for an email address so you can keep going. It's built by the team behind Cloud Campaign, the social media platform for agencies.

How long should a LinkedIn post be?

LinkedIn allows 3,000 characters and cuts the post at roughly 210 on desktop and 140 on mobile. Text posts between 900 and 1,500 characters tend to perform well, so pick a longer length when you want the full story and a short one when the image carries it.

How many hashtags should I use on LinkedIn?

Three to five, placed at the end of the post. LinkedIn treats them as topic signals, not discovery tools, so pick ones people actually follow. Set your hashtag preference before generating and the caption will match it.

Will an AI caption hurt my LinkedIn reach?

No. LinkedIn ranks on early comments and dwell time, not on who wrote the caption. Generic copy is what hurts, which is why the generator writes from your actual image and context and ends with a reason to comment.

Can it match my client's voice?

Yes. Add the client's website and the generator uses it to build a more precise brand voice, then choose the tone that fits the account. It's built for agencies writing as multiple clients, including company pages and founders.

Does it write a hook for the first two lines?

Yes. The generator writes the first two lines as a standalone hook so the post earns the “…more” click, then breaks the rest into short lines with space between them.

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