Free tools · Updated August 2026 · Works in your browser

Free LinkedIn Tools

Everything on this page runs in your browser or on our AI, without an account. LinkedIn posts have no bold, italic, underline or bullet buttons: those exist only in articles and newsletters. A LinkedIn post is capped at 3,000 characters, with about 210 visible before "see more" on desktop and fewer on mobile. The tools below handle the formatting, counting, previewing and writing; the scheduler handles the posting.

Write & format

LinkedIn Text FormatterBold, italic, underline and bullets for LinkedIn posts.LinkedIn Font Generator25+ copy-and-paste font styles for LinkedIn.LinkedIn Bold Text GeneratorBold text for LinkedIn posts, bios and comments.

Preview & mockups

LinkedIn Post PreviewSee the feed version of a LinkedIn post before you post.LinkedIn Post Mockup GeneratorRealistic LinkedIn post cards for decks and client approvals.

AI generators

LinkedIn Caption GeneratorFive LinkedIn captions from a one-line brief.LinkedIn Headline GeneratorFive LinkedIn headlines under 220 characters.LinkedIn Summary GeneratorFive LinkedIn About sections under 2,600 characters.LinkedIn Hashtag GeneratorThree hashtag sets sized for LinkedIn.LinkedIn Comment GeneratorFive LinkedIn comments that add something.LinkedIn Post GeneratorThree complete LinkedIn posts from a brief.

Counters & checks

LinkedIn Character CounterLive count against every LinkedIn limit.

Calculators

LinkedIn Engagement Rate CalculatorEngagement rate by followers, reach or views, with benchmarks.

Images

LinkedIn Image ResizerExact LinkedIn sizes for posts, profile and cover images.

LinkedIn limits and sizes at a glance

A LinkedIn post is capped at 3,000 characters, with about 210 visible before "see more" on desktop and fewer on mobile. Headlines are 220, the About section 2,600, comments 1,250. LinkedIn wraps lines at about 60 characters on a phone, so short lines read better.

Posting on LinkedIn in 2026

Under 12 words in the first line, one idea per post, short lines with white space. Posts that ask a real question get comments, and comments are what the LinkedIn feed rewards.

LinkedIn suggests three to five hashtags per post. They help LinkedIn categorise the post for people who follow the tag; more than five looks like spam and adds nothing.

LinkedIn character limits (2026)

Field	Limit	Note
Post	3,000	First 210 characters show before "see more"
Headline	220
About / summary	2,600
Comment	1,250
Article headline	100
Article body	110,000
Company tagline	120
Company description	2,000
Poll question	140

Formatting support on LinkedIn

LinkedIn posts have no bold, italic or bullet buttons — only articles and newsletters do. Unicode bold is what every "formatted" LinkedIn post you have seen is using.

Use "→", "•" or "✔" at line starts; keep lines short — LinkedIn wraps at about 60 characters on mobile.

LinkedIn image sizes (2026)

Placement	Size (px)	Ratio
Feed image	1200 × 627	1.91:1
Portrait post	1080 × 1350	4:5
Profile photo	400 × 400	1:1
Personal banner	1584 × 396	4:1
Company logo	300 × 300	1:1
Company cover	1128 × 191	5.9:1

Need one of these sizes? Use the LinkedIn image resizer.

Hashtags on LinkedIn

LinkedIn recommends three to five hashtags; more than that looks like spam to the feed. Limit: none. Sweet spot: 3–5.

Frequently asked questions

Are these LinkedIn tools free?

Yes. The browser tools have no limits; the AI tools allow ten generations a day without an account.

Can I schedule LinkedIn posts here?

Every tool has a "Schedule" link that opens Social by InstantDM with your text prefilled: it publishes to LinkedIn and seven other platforms from one calendar.

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Write it here, publish it everywhere

Social by InstantDM schedules to Instagram, Facebook, X, LinkedIn, TikTok, Pinterest, Threads and YouTube from one calendar, with AI captions, previews and an API. Start free — $0 today, cancel anytime.