Where bold text helps
- LinkedIn posts: bold a headline or key result so it stands out in the feed.
- X and Threads: emphasize one phrase in a post.
- Instagram and TikTok bios: bold your name or niche.
- Product listings: highlight a key feature in places that only accept plain text.
Best practices
Bold works best in small doses. A bold first line acts like a headline and can stop people scrolling, but a whole post in bold is hard to read and looks like shouting. Keep hashtags, links and @mentions in normal text so they still work.
How it works
Unicode includes complete alphabets of bold letters for use in mathematics. This tool maps each normal letter to its bold twin, like A → 𝐀 or 𝗔. Since they are characters and not formatting, they keep their look wherever you paste them.
Need slanted letters instead? Try the italic text generator. For every style at once, use the fancy font generator.
Last reviewed October 2026.
Frequently asked questions
How do I make bold text on Instagram, X or LinkedIn?
These apps do not have a bold button for posts or bios. Type your text here, copy the bold version and paste it in. The letters stay bold because they are special Unicode characters.
Which bold style should I use?
Bold sans-serif looks clean and modern and matches most app fonts, so it is the most popular for LinkedIn and X. Bold serif feels more traditional. Bold italic, bold script and bold gothic add extra flair.
Will bold text hurt my post's reach?
Search inside apps may not match words written in styled characters, and screen readers can read them oddly. Use bold for a headline or a key phrase, not your whole post.
Do numbers work in bold?
Yes, in the bold serif and bold sans styles. Some other styles only change letters and leave numbers and punctuation as they are.
Can I bold text in Discord or WhatsApp another way?
Yes. Discord uses **double asterisks** and WhatsApp uses *single asterisks* for bold. This generator is handy for places without that formatting, such as profile names and bios.