01
How to bold text on LinkedIn
LinkedIn posts have no formatting toolbar, so the bold and italic you see in other people's posts are Unicode characters that look bold. Write your post above, select a word or a line, click Bold, then copy the post and paste it into LinkedIn. The formatting survives because it's part of the text.
Use it for short headings and one or two key phrases. A whole post in bold is harder to read, and screen readers and LinkedIn search may not read styled letters as words, so keep names, company names and the keywords you want to be found for in plain text.
02
The first three lines decide
In the feed, LinkedIn shows roughly the first three lines of a post and hides the rest behind "…see more". That opening is your hook: say who it's for and what they get before the cut. Short lines with a blank line between them use the space better than one long paragraph.
The preview cuts after three lines or about 210 characters. The real cut moves with screen width and the app, so treat it as a guide, not a pixel-exact copy of LinkedIn.
03
Bullets, line breaks and the character limit
The bullet button adds "• " to each selected line; click it again to remove them. Line breaks are kept as you type them.
LinkedIn posts are widely reported to allow 3,000 characters; LinkedIn's own API documentation doesn't state a number. Styled letters usually count as two, so a heavily formatted post reaches the limit sooner.
Sources and methodology
Numbers checked on October 17, 2026.
Formatting uses the same Unicode styles as our font generator (Mathematical Alphanumeric Symbols, U+1D400–U+1D7FF). The 3,000-character limit is from secondary sources; LinkedIn's Posts API documentation doesn't state it. Everything runs in your browser.
- Mathematical Alphanumeric Symbols (U+1D400–U+1D7FF) — The Unicode Consortium, October 17, 2026
