The short version: LinkedIn’s normal post box has no bold button, so you type your text into a free Unicode bold text converter, copy the special characters it spits out, and paste them into your post. It works in seconds, but those “bold” letters aren’t real letters, and that causes a genuine problem for anyone using a screen reader.
Why LinkedIn won’t let you just press Ctrl+B
This trips people up because it feels like it should exist. You’re on a slick, professional platform, you’ve written a post you’re proud of, and there’s no formatting toolbar in sight. No bold, no italics, no bullet points that render as bullet points.
That’s because LinkedIn’s main post composer, the box you type a status update into, is plain text only. It stores what you write as raw characters with no styling data attached. Compare that to LinkedIn’s article editor or newsletter tool, which is a proper rich text editor with a real bold button and keyboard shortcuts that work. If you’ve ever published a full article on LinkedIn, you’ll have noticed the formatting options are completely different there. The gap between “post” and “article” catches almost everyone out at least once.
The actual method: Unicode characters, not formatting
Here’s what’s happening under the bonnet, and it’s worth understanding because it explains the downside I’ll get to shortly. Unicode, the international standard that assigns every character on your keyboard a unique code, includes a huge block of characters called Mathematical Alphanumeric Symbols. This block contains bold, italic, and script versions of the entire alphabet, originally meant for typing equations. A bold text generator simply swaps your normal “a” for the mathematical bold “𝗮” and your normal “b” for “𝗯”, letter by letter. You can read more about that character set on Wikipedia’s page on Mathematical Alphanumeric Symbols if you want the full technical picture.
Because these bold characters are stored as ordinary text, not as formatting, LinkedIn’s plain text box has no idea they’re anything special. It just displays them, and they look bold everywhere: mobile, desktop, the LinkedIn app, even when someone shares your post as a quote.
Step by step
- Write your post normally in a document first, not directly in the LinkedIn box, so you don’t lose your work.
- Highlight the specific word or short phrase you want bold, no more than a handful of words at a time.
- Paste that phrase into a free Unicode bold text generator (search “bold text generator” and you’ll find several, YayText and LinkedIn Bold Text Generator are two that come up often).
- Copy the bold version it produces.
- Paste it back into your original document in place of the plain text.
- Once your full post is written with your chosen phrases bolded, copy the entire thing and paste it into LinkedIn.
- Check it on your phone before you post. Rendering sometimes breaks on older Android keyboards, and you’ll see boxes or odd spacing instead of bold letters.
That last step matters more than people think. I’ve seen posts where the bold worked perfectly on the writer’s laptop and turned into a row of tofu boxes on half their audience’s phones. Always preview on mobile.
What I found after testing this on my own posts
I ran a rough test across 40 of my own LinkedIn posts over three months in 2026, half using one or two bolded phrases in the first two lines, half completely plain. The bolded ones did get more early engagement, comments and reactions in the first hour were noticeably higher, probably because the bold phrase acted like a headline within a headline and stopped the scroll for half a second longer. But past two or three bolded phrases per post, the effect flattened out and, on a couple of posts where I got carried away and bolded whole sentences, engagement dropped. It started reading like a ransom note rather than a professional update.
My working rule now: one bold phrase in the first line to earn the click on “see more,” maybe one more further down to re-anchor attention, and that’s it. Anything more and you look like you’re shouting.
The problem almost nobody mentions
Here’s the part that most “how to bold your LinkedIn post” guides leave out entirely, and it bothers me that they do. Those mathematical bold characters aren’t the letters A to Z. They’re separate Unicode symbols that happen to look like letters. Screen readers, the software blind and low vision professionals use to have web content read aloud to them, often don’t recognise them as text at all. Some skip them completely. Some spell them out letter by letter in a flat robotic voice. Some announce them as “mathematical bold letter A” before every single word.
A subscriber of mine who is blind and uses JAWS messaged me a while back to say a post I’d bolded for emphasis had come through as a string of gibberish in her feed reader. She thought I’d been hacked. I hadn’t been, I’d just made my headline bold using exactly the trick I’ve described above, with no idea it would do that to her experience of the post.
That’s the uncomfortable bit nobody wants to put in a bold text tutorial, because it slightly ruins the fun of the trick. LinkedIn has a real, sizeable community of visually impaired professionals and job seekers, and every fake-bold post you send out is a small barrier for some of them. I still use bold occasionally, but sparingly, and never for anything that carries the actual meaning of the sentence, only for emphasis that’s a nice-to-have rather than essential to understanding the post.
When bold earns its place, and when it doesn’t
Bold works well for:
- A short, punchy opening line that has to survive being cut off by LinkedIn’s “see more” truncation.
- One key number or result inside a longer story, so it’s scannable for someone skimming on their commute.
- A single call to action at the very end, such as “Comment BOLD and I’ll send you the template.”
Bold does not help:
- Whole paragraphs. If everything is bold, nothing is.
- Posts that are already visually busy, especially ones with an image, a carousel, or bullet-heavy structure. If you’re pairing bold text with a graphic, it’s worth checking your image displays at the correct size for a LinkedIn post first, since a stretched or cropped image will undo any good the bold text did.
- Anything you’d be embarrassed to have read aloud letter by letter to a client with a visual impairment, because for some of your audience, that’s exactly what will happen.
Other ways to make a LinkedIn post stand out without touching bold
If the accessibility trade-off puts you off, and it’s fair enough if it does, there are other ways to get the same scroll-stopping effect. Short line breaks do a lot of the same visual work as bold, breaking a wall of text into single-thought lines that are easy to skim. A well-placed question mark or a one-word line (“Wrong.”) pulls the eye just as effectively as a bolded phrase, and it renders perfectly for every screen reader on earth because it’s just ordinary text.
The habit of writing in short, punchy fragments rather than leaning on formatting tricks is the same discipline that makes a good email newsletter readable, or a guest post hold attention on someone else’s site where you can’t control the formatting at all. Bold is a shortcut. Good sentence structure is the actual skill, and it works everywhere, not just on LinkedIn.
Frequently asked questions
Does LinkedIn have a real bold button for posts?
No, not in the standard post composer. The bold text you see in LinkedIn posts is created using a Unicode character trick, not a genuine formatting feature. LinkedIn’s article and newsletter editor does have a real bold button, but the main feed post box does not.
Will using bold text hurt my LinkedIn reach?
There’s no confirmed evidence that LinkedIn’s algorithm penalises Unicode bold text directly, but overusing it makes a post look spammy and can lower engagement because people scroll past anything that reads as shouty. One or two short bolded phrases per post is plenty.
Why does my bold text look broken on some phones?
Bold text on LinkedIn uses special Unicode characters rather than real formatting, and some older Android keyboards and apps don’t render that character set correctly, showing boxes or blank spaces instead. Always preview your post on mobile before publishing.
Is bold text on LinkedIn accessible to everyone?
No. Screen readers used by blind and low vision LinkedIn members often can’t interpret Unicode bold characters as normal letters, so they may skip the text, spell it out letter by letter, or announce it strangely. Use bold sparingly and never on words that carry the core meaning of your sentence.
