Your bio is the one piece of copy every visitor reads, and on LinkedIn it determines whether you are findable at all. Enter what you do and get options sized to each platform’s limit.
| Platform | Bio limit | What it is actually for |
|---|---|---|
| 150 characters | Who you are + one reason to follow + a link | |
| TikTok | 80 characters | Extremely tight — one clear line only |
| X | 160 characters | Identity and topic, often with personality |
| LinkedIn headline | 220 characters | Search matching — the highest-value field on the platform |
| Threads | 150 characters | Conversational identity |
| 500 characters | Descriptive, keyword-rich, search-oriented |
Your LinkedIn headline is the highest-leverage keyword real estate you have anywhere, and the most commonly wasted. Recruiters, prospective clients and partners search LinkedIn using the language of the thing they need — "fractional CFO," "B2B SaaS pricing," "clinical trial recruitment." If your headline says "Helping businesses unlock their potential," you match none of those searches.
Write it as the terms someone would actually type to find a person who does what you do. Fractional CFO for Series A–B SaaS | cash-flow modelling & board reporting matches real searches. Aspirational abstraction matches nothing.
Writing the bio for people who already know you. A visitor arriving from a single post knows nothing about you and is deciding in about three seconds whether to follow. The bio has to answer "what will I get if I follow this account" — and vague aspirational language answers nothing.
Need the full tag set too?Tagly’s main generator returns ranked hashtags, keywords, captions, titles and a publish package for any topic — free, no login.Open the generator →150 characters. That is enough for who you are, one concrete reason to follow, and a link — which is exactly what it should contain.
80 characters, the tightest of any major platform. It supports one clear line and nothing more, so lead with the specific thing you make.
Using the terms someone would actually type to find a person who does your work — specific specialism, sector and deliverable. Abstract phrasing like "helping businesses unlock potential" matches no real searches.
Only if they are genuinely part of your brand. They consume characters on platforms where you have very few, and emoji-heavy bios read as generic.
Answer "what will I get if I follow this account" for someone who knows nothing about you and is deciding in about three seconds. Vague aspirational language answers nothing.
On LinkedIn substantially, since the headline determines whether you appear in searches. On Instagram and TikTok, bio keywords contribute to how your account is classified, which affects who gets recommended your content.