b2KIT

Social Media Bio Generator

Create optimized social media bios for Instagram, Twitter, LinkedIn, and TikTok with character limits, keyword inclusion, and CTA suggestions.

Tested tool guide Tested browser tools Checked August 16, 2026

What Social Media Bio Generator does, with a checked example

The limits are the story: Instagram bios hold 150 characters, X holds 160, the LinkedIn headline 220, and TikTok only 80. This tool takes a paragraph about who you are and what you do - profession, niche, location, the action you want visitors to take - and returns a separate bio for Instagram, X (Twitter), LinkedIn, and TikTok, rewritten to fit that limit. It counts every character, keeps your key terms, and appends a call to action when you did not supply one. The common mistake is reusing one bio everywhere: a 220-character LinkedIn headline gets cut off in an 80-character TikTok bio.

Worked example

A concrete input and expected output from the current implementation.

Input

I'm Maya Chen, a certified bookkeeper in Toronto. I do payroll, GST/HST, and monthly bookkeeping for small businesses. Contact me for a free consultation.

Expected output

Instagram (121/150): Certified bookkeeper for small businesses in Toronto | Payroll, GST/HST, monthly bookkeeping | DM for a free consultation
X (152/160): Certified bookkeeper for small businesses in Toronto. Payroll, GST/HST, and monthly bookkeeping. DM for a free consultation. #bookkeeping #smallbusiness
LinkedIn (117/220): Certified Bookkeeper | Small Business Accounting in Toronto | Payroll & GST/HST Specialist | DM for free consultation
TikTok (74/80): Certified bookkeeper in Toronto | Payroll, GST/HST | DM for a free consult

Each draft keeps the same facts - role, specialty, location, service list, CTA - but compresses them to fit the platform ceiling (150/160/220/80), which is why the counts differ: 121, 152, 117, and 74 characters. The tool also rewrote 'Contact me' into 'DM for a free consultation,' the phrasing that reads naturally on short-form platforms.

How the result is produced

1

Per-platform rewrite to a hard limit

The tool takes your raw paragraph, extracts the facts (role, niche, location, services, CTA), and composes each bio separately rather than shrinking one text. It abbreviates where a platform is tight - 'monthly bookkeeping' becomes 'bookkeeping' on TikTok - and stops when the draft fits the platform's limit, reporting the exact count so you can compare drafts against the 150/160/220/80 ceilings.

2

Keyword and call-to-action pass

Before finalizing each draft, the tool checks that the terms most likely to be searched - profession, specialty, location - survived the character cut, and reorders so the strongest keyword leads. It also verifies a CTA is present; if your input had none, it appends a platform-idiomatic one such as 'DM for a free consultation' rather than 'Contact me,' which reads as spam on some platforms.

Good uses

  • Relaunching a personal brand or small business and needing Instagram, X, LinkedIn, and TikTok bios in one pass, each shaped for its own limit instead of one cut-and-paste text.
  • Job hunting or preparing for a networking event: tightening the LinkedIn headline to lead with title and keywords while the Instagram and TikTok versions stay shorter and more casual.
  • Testing a new positioning or adding a service line, and wanting to see in seconds whether the message still fits each limit and which words have to go.

Limits and checks

  • The count is the tool's own arithmetic, not the platform's. Some platform counters treat certain emoji as two or more characters while others count them as one, so a draft sitting exactly at the limit may be rejected or truncated when pasted; keep headroom.
  • The tool only rewrites what you typed, so a vague input yields a vague bio, and it cannot know your brand voice. Treat every draft as a first pass to edit rather than final copy.
  • The limits cover the bio field only. Instagram's display name, X's location field, and the TikTok username have separate, smaller limits this tool does not check, and a platform can change its limits, cutting off bios that used to fit.

Common questions

Do the character counts include spaces, and do emojis count as one character?

Spaces count, and the tool includes them in the total. Emojis count as one character in the tool's counter, but platform counters are not consistent: Instagram's own counter counts some emoji as two or more characters, and multi-emoji sequences like flags count as several. Keep roughly 10-15 percent headroom under the limit if your final bio uses emoji.

Will filling the bio with keywords help me show up in search results?

Partially. On Instagram, text in the bio, name, and username is searchable, so your specialty and location genuinely matter. But ranking also weighs engagement and relevance, and a bio stuffed with repeated or irrelevant terms looks like keyword spam, which can hurt both ranking and the people reading it. Put each keyword in once, naturally, and let the tool's count tell you how much room remains.

References and verification

The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.

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