Your nameYour headlineNow
Your post shows here the way the feed shows it: the first lines, then the rest behind “…more”.
HeyReagent / LinkedIn text formatter
LinkedIn text formatter
Bold, italic, underline and bullets for a LinkedIn post, with a preview of how the feed shows it. Write it here, copy it, paste it into LinkedIn. Free, and nothing you type leaves your browser.
0 of 3,000 characters
About what people see before they tap “…more”. Where LinkedIn cuts exactly depends on the screen.
How it works
A LinkedIn post is plain text: there is no bold or italic in it. What people use instead are letters from another part of Unicode that look bold or italic. They paste into LinkedIn like any other letters and look the same on every screen.
- Select, then press. Select a few words and press a style. Press it again to take it off. Ctrl or ⌘ with B, I or U works too.
- Bullets and numbers go on every line you have selected, or on the line you are in.
- Plain takes every style off what is selected.
LinkedIn's limit
| A post | Up to 3,000 characters. Longer than that, LinkedIn suggests writing an article instead. Post and share updates |
Rather post it from your AI app?
With HeyReagent connected, Claude or ChatGPT can publish a post on your own LinkedIn when you ask it to: paste the post into the chat and say "post this on my LinkedIn". That is the Connect plan. Connect Claude to LinkedIn, or ChatGPT.
Questions
How do I make text bold on LinkedIn?
LinkedIn has no bold button for posts. Write the post above, select the words, press Bold, then copy it into LinkedIn. The bold letters are special characters that look bold, so they stay bold wherever you paste them.
Can I use italic or underline in a LinkedIn post?
Yes, the same way: select the words and press Italic, Underline or Strike through. Underline and strike through are a small mark after each letter, so they can look a little different from one screen to another.
How many characters can a LinkedIn post have?
LinkedIn says a post can have up to 3,000 characters (its help page “Post and share updates”, read on 24 October 2026). The counter above counts a styled letter as one character.
Where does LinkedIn cut a post with “…more”?
The feed shows the first few lines and hides the rest behind “…more”. LinkedIn does not publish an exact number, and it changes with the screen, so the preview above shows both a computer and a phone. Put the line that makes people want to read on first.
Is bold text bad for accessibility?
It can be. Screen readers may read styled letters one by one, or skip them, and LinkedIn search may not match them to the plain word. Keep styles for a few words that matter, not whole sentences. Copy without styles gives you the plain version.
Is what I write sent anywhere?
No. The formatter runs in your browser. Your draft is kept in this browser only, so it is still here if you close the tab, and Clear removes it.
And when LinkedIn gets busy
HeyReagent is an agent on your own LinkedIn. It answers your messages the way you would, has the follow-up ready when someone goes quiet, and finds who to talk to next. You approve what it sends.
HeyReagent is not affiliated with, endorsed by, or sponsored by LinkedIn. LinkedIn's own terms apply to your account. What this page says about other products was read on their own pages on 24 October 2026.
More guides
- An AI SDR for LinkedIn that asks before it sendsAn AI SDR that works your own LinkedIn: it finds who to talk to, writes the first note, follows up and answers replies, and asks before anything goes out.
- How to run your LinkedIn company page from ChatGPTConnect your own LinkedIn once, then have ChatGPT post as your company page, pick who sees each post, comment and react as the page, and read its followers.
- HeyReach, Apify and Claude: check who is active before you inviteHeyReach wrote up a way to have Claude check which LinkedIn leads are active before inviting them. Here is what it says, and how to ask for the same check here.
- What Claude Duet means for your LinkedIn workClaude Duet is Anthropic's new app where Claude works as a proactive agent. Here is what that can and cannot mean for your LinkedIn today.
- LinkedIn MCP serverOne address for Claude, ChatGPT, Cursor and n8n.
- Is there an official LinkedIn MCP?No. What LinkedIn does offer, and what else exists.
- LinkedIn AI agentAn agent on your own LinkedIn: what it does, and how you stay in charge.
- LinkedIn automationWhat LinkedIn’s rules say, and automation that asks before it sends.
- Connect Claude to LinkedInA LinkedIn connector for Claude and Claude Code.
- Connect ChatGPT to LinkedInYour own LinkedIn inside ChatGPT.
- Connect Meta Muse to LinkedInYour own LinkedIn in Muse, as a custom connector.
- LinkedIn in n8nMessages, invitations and search in an n8n workflow.
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- LinkedIn banner resizerAny picture at 1584 × 396, framed and ready to upload.
- LinkedIn QR codeA code for your profile link, to print or put on a slide.
- Dripify alternativeAn agent that answers, beside a tool that sends sequences.
- Expandi alternativeFewer messages, each one written for the person.
- HeyReach alternativeOne account done well, beside many at scale.
- Valley alternativeTwo close products, and where they differ.
- Gojiberry alternativeTwo close products, and where they differ.