Social Media Bio Optimizer - Write the Perfect Bio for Every Platform
Write, preview and score your bio for Instagram, Twitter/X, LinkedIn, Facebook, TikTok and YouTube. Get live character counts, keyword and tone analysis, and platform-specific tips, all in your browser.
Built Around Each Platform's Official Bio Limits
Write a Better Bio in 4 Steps
Pick Your Platform
Each network has a different character limit and layout, so choose the one you are writing for first.
Write or Load a Template
Start from scratch or click a template, then replace the [brackets] with your own details.
Check the Score & Quick Fixes
Watch the five score bars and apply the suggestions until your bio reads clearly and has a call to action.
Copy It to Your Profile
Use the live preview to confirm how it looks, then copy the bio and paste it straight into your profile.
Why Your Bio Deserves Attention
Wins the First Impression
Your bio is often the first thing a visitor reads. A clear line on who you are and what you offer decides whether they follow.
Helps You Get Found
Platforms like TikTok, YouTube and LinkedIn search profile text, so the right keywords can bring in the right audience.
Turns Visits Into Action
A single clear call to action points visitors to your link, your inbox or your next video.
Frequently Asked Questions
Is the Bio Optimizer free to use?
Yes. The tool is free, needs no login, and runs entirely in your browser, so your bio text is never uploaded.
What are the bio character limits?
This tool uses 150 characters for Instagram, 160 for Twitter/X, 80 for TikTok, 101 for the Facebook short bio, 2,600 for the LinkedIn About section (220 for the headline) and 1,000 for the YouTube channel description. Platforms can change these limits, so confirm in the app if a paste is rejected.
How is the bio score calculated?
The score averages five checks: length against the platform limit, emoji use, presence of a call to action, keywords you add, and clarity (filler words and line breaks). It is a writing guide, not a ranking prediction.
Should I use hashtags in my bio?
It depends on the platform. They rarely help on Instagram bios, while plain keywords that describe your niche are more useful on TikTok, YouTube and LinkedIn.
Can I save my bio for later?
Use Copy Bio to paste it elsewhere or Download .txt to save a file. The tool does not store anything between visits.
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