Bold text generator

Bold where there is no bold button

LinkedIn posts, Instagram bios, Twitter/X, Facebook, most form fields and plenty of internal tools store what you type as plain text. There is no bold button because there is nowhere to put the formatting. Unicode bold works around that by using characters that are already drawn heavy — the weight travels with the text itself.

Which bold to pick

Sans-serif bold is the right default for almost every social platform, because it sits at the same weight and shape as the surrounding UI text. Serif bold looks pasted in on a sans-serif feed.

Do numbers bold?

Only in some sets. Unicode gives bold digits to the serif and sans-serif bold blocks, so “50% off” bolds cleanly there. The italic, script and fraktur blocks contain no digits at all, so numbers pass through at normal weight — which looks like a mistake rather than a style. Check the preview before posting anything with figures in it.

Use it sparingly, and here is why

There is a real cost. Screen readers commonly read mathematical bold letters out one at a time, so a fully bolded post can be unusable for a blind reader. Search and hashtag indexing frequently skips these characters, so a bolded keyword may simply not be found. And several platforms have started down-ranking posts that use them heavily, on the reasonable grounds that they are a formatting hack.

The practical rule: bold one line — a headline, a job title, a single call to action — and leave the body in ordinary text. That keeps the emphasis, the accessibility and the searchability.

LinkedIn specifics

Bold Unicode works in posts, comments, the headline field and the About section. It does not work in your actual name field, which LinkedIn validates and which is also against their name policy. Recruiters searching for a job title will not match a bolded one, so keep the searchable version somewhere in plain text on the profile.

Nothing leaves your browser

The conversion is arithmetic on character codes, performed as you type. Whatever you are drafting — an announcement, a resignation post, a job ad that is not public yet — stays in this tab.