Turn a rough idea into a LinkedIn post with a hook, a clear point and a call to action. Free AI writer, no sign-up.
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What is a LinkedIn post generator?It is an AI tool that writes LinkedIn posts from a short idea. You describe the topic, set the length and tone, and it returns up to three ready-to-edit drafts with optional hashtags and emojis. ContentStudio's LinkedIn post generator is free, needs no account and works for personal profiles and company Pages.
How to use it
Describe your idea
Write the topic, idea or key message for the post in one or two sentences. Mention who it is for.
Set the length
Use the Approx. words slider. 50–80 words gives a short update. 150–250 words gives a full story or how-to post.
Pick a voice tone
Professional, informative and persuasive suit most business posts. Witty or sincere work well for personal stories.
Hashtags and emojis
Turn them on or off. Most LinkedIn posts need only 3 to 5 hashtags and a few emojis at most.
Generate
Choose 1, 2 or 3 variations and click Generate. Copy the one that fits, add your own details and publish.
The quality of the output is directly proportional to the specificity of the input. "SaaS onboarding best practices that reduce churn in the first 30 days" produces more usable copy than "something about SaaS."
What you can write
Share a strong opinion on a trend in your industry, back it with one example and end with a question.
Turn a win, a mistake or a career change into a short story with a clear takeaway. These posts invite comments.
Product launches, new hires, milestones and event recaps written for your company Page followers.
Announce an open role in a friendly, human way and tell people how to apply or who to message.
Write the copy that sits above a carousel (document post), video or image so people know why to stop and look.
Name the event, the date, who it is for and one reason to attend. Add the registration link in the post.
For B2B
LinkedIn is the main professional social network for B2B content. B2B LinkedIn posts serve different goals from consumer content: they build thought leadership, generate inbound pipeline, and maintain visibility with buyers in long sales cycles.
B2B LinkedIn posts that perform well share these characteristics:
To use the generator for B2B content, specify the industry, the target audience role, and the business outcome in the input description.
LinkedIn captions
LinkedIn captions and LinkedIn post copy refer to the same text field. LinkedIn does not have a separate caption field distinct from the post body. The terms are used interchangeably to mean the text above a post, especially for image, video or document posts. Use this tool as a LinkedIn caption generator: describe the image or video, and ask for a short post that explains why it matters.
What makes a good post
LinkedIn shows roughly the first 210 characters on desktop, and less on mobile, before "…see more". Lead with the result, a surprising number or a sharp question.
Break the post into one- or two-sentence lines. Walls of text get skipped in the feed.
A post that tries to cover five points usually lands none. Pick one lesson or one opinion and support it.
AI gives you structure. Your numbers, client stories and opinions make the post worth reading. Always edit the draft before you publish. For better results from any AI tool, try these AI prompts for LinkedIn posts.
Ask for opinions, experiences or a specific reply. Comments start conversations, and conversations keep a post in the feed longer.
Three to five tags at the end are enough. Need ideas? Use the LinkedIn hashtag generator.
Post ideas
The biggest mistake I made in my first year as a manager and what I do differently now
Why most B2B companies post too much product news on LinkedIn and what to post instead
3 steps to prepare for a performance review, for early-career marketers
Our team just shipped our 100th customer integration. Thank the team and share one lesson
We're hiring a remote customer success manager. Friendly post with what the role is like
Starting a new role as Head of Growth at a fintech startup. Grateful, short, no bragging
Invite people to our free webinar on LinkedIn content for founders next Thursday
What a normal Monday looks like at our 12-person agency
Length and limits
LinkedIn posts can be up to 3,000 characters, but most effective posts are much shorter. A good default is 100–250 words: long enough to make one point well, short enough to read on a phone.
| Item | Limit |
|---|---|
| Post text | 3,000 characters |
| Shown before "…see more" | About 210 characters on desktop, around 140 on mobile (varies) |
| Comment | 1,250 characters |
| Recommended hashtags | 3–5 relevant ones |
| Bold and italic text | No built-in formatting buttons in the post editor |
Schedule LinkedIn posts
LinkedIn has a basic scheduler built into the post composer. Click the clock icon next to Post, pick a date and time, and LinkedIn publishes it for you. You can schedule up to 3 months ahead, but there is no calendar view, no bulk scheduling and only basic analytics.
For scheduled publishing with more control, ContentStudio's LinkedIn scheduler lets you draft, schedule and publish LinkedIn posts to profiles and company Pages from a visual calendar, alongside your other networks. This is separate from the free post generator, which you can keep using at no cost.
Writing the post is step one. ContentStudio is a social media management platform that takes you from idea to published post. With it you can:

Is it free?
Yes. ContentStudio's LinkedIn post generator is free with no usage cap and no account required. It is part of ContentStudio's suite of free social media tools.
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