Last updated: March 2026
What Is the AI Social Media Bio Writer?
Craft the perfect bio for Instagram, LinkedIn, Twitter, TikTok, YouTube, or Threads. Enter your profession, personality traits, and desired vibe — get 5 platform-optimized bio variants instantly. Every bio respects the exact character limit for your chosen platform so you can copy and paste directly.
Your social media bio is the first thing people read when they visit your profile. It needs to communicate who you are, what you do, and why someone should follow you — all within a strict character limit. This tool uses Claude AI to generate bios that match each platform's unique culture and best practices.
Writing Bios That Convert Followers
The best social media bios follow a simple formula: who you are + what you do + why they should care. On Instagram, this might be emoji-separated lines. On LinkedIn, it's a polished headline with credentials. On TikTok, it's a punchy one-liner that captures your personality.
A strong CTA (call-to-action) can make the difference between a profile visit and a follow. Whether it's “DM for collabs” or “Check out my latest”, giving visitors a clear next step increases engagement and drives traffic to your content or business.
Platform Character Limits in 2026
Instagram limits bios to 150 characters. Use line breaks (entered via mobile) and emojis as visual bullets. LinkedIn headlines get 220 characters — enough for role, specialty, and a value proposition. Twitter/X gives you 160 characters for personality-driven bios.
TikTok is the tightest at just 80 characters — every word must earn its spot. YouTube is the most generous with 1,000 characters for your About section, perfect for keyword-rich descriptions. Threads matches Instagram at 150 characters.
Frequently Asked Questions
Does it respect character limits?
Yes. Each bio variant is generated within the exact character limit for your selected platform — 150 for Instagram, 220 for LinkedIn, 160 for Twitter/X, 80 for TikTok, 1000 for YouTube, and 150 for Threads.
Can I regenerate just one bio?
Yes. Each variant card has its own regenerate button so you can keep the ones you like and replace only the ones you don't.
Which platforms are supported?
Instagram (150 chars), LinkedIn Headline (220 chars), Twitter/X (160 chars), TikTok (80 chars), YouTube About (1000 chars), and Threads (150 chars).
Is there a usage limit?
Each session allows 15 generations. This includes both full generations (5 bios) and individual regenerations. Refresh the page to reset.
Are my details saved?
No. Everything runs in your browser session. Your profession, traits, and generated bios are never stored permanently. Close the tab and they're gone.