Give your X posts character
Built and maintained by Nathan Mittelette — LinkedIn
Boldify turns selected letters into Unicode characters. Prepare a post for X, compare it on LinkedIn and keep your draft along the way. No Boldify account is required.
Simple. Free. Powerful.
Why Boldify?
More than a simple formatting tool, Boldify is the daily companion of creators who want immediate impact.
How Boldify was born
Formatting LinkedIn posts should work for everyone, not just English speakers. Most tools simply drop accented characters, leaving non-English writers with broken output. Nathan built Boldify to fill that gap: a formatter that handles every character in every language, with no signup and no cost. He then released it as open-source so anyone could use or build on it.
Uniformity kills attention
On X, everyone uses the same font, the same style. Important messages get lost in a sea of plain text. We wanted to break this mold by offering character styles that actually work on all devices.
Speed
No sign-up, no ads, no fluff. Type, format, copy. That's it.
100% Free
We believe the best tools should be accessible to all creators, whether they're just starting out or experienced.
Real Preview
Illustrative preview. Unicode rendering can vary across X and devices.
The ethics behind the code
Total transparency
We do not collect your writing data. What is written in Boldify stays in Boldify.
Community Engagement
Boldify evolves thanks to your feedback. Every feature added comes from a user suggestion.