Free Online Subscript Generator
Convert your text to subscript characters (H2O, CO2, x1) using Unicode. Perfect ...Convert your text to subscript characters (H2O, CO2, x1) using Unicode. Perfect for chemical formulas, math notation, and more!
Quick Examples (click to use)
Numbers (All Supported)
Letters (Partial Support)
Common Uses
Subscript Generator Features
Why Use Free Online Subscript Generator?
Chemical Formulas
Instantly create proper chemical formulas like H2O, CO2, and H2SO4 with subscript numbers.
Math Notation
Write mathematical indices, sequences, and logarithm bases with proper subscript notation.
Bonus Superscript
Get a free superscript version of your text alongside the subscript conversion.
100% Private
All conversion happens in your browser. Your text is never sent to any server.
Real-Time Conversion
Text converts to subscript instantly as you type. No delays or button clicks needed.
Works Everywhere
Unicode subscript works on social media, messaging apps, documents, and websites.
Popular Use Cases for Subscript
Chemistry
Write chemical formulas like H2O, CO2, H2SO4, and NaCl with proper subscript notation.
Mathematics
Create variable indices (x1, x2, xn), sequence notation (a0 + a1), and logarithm bases.
Academic Writing
Add proper scientific notation to research papers, homework, and educational content.
Social Media
Share chemical formulas and math notation on Twitter, Instagram, and other platforms.
How It Works
Type Your Formula or Text
Enter text like "H2O" or "CO2" in the input box. Numbers and supported letters will be converted to subscript automatically.
See Instant Conversion
Your text is converted to subscript Unicode characters in real-time as you type. No waiting or button clicks needed!
Copy and Use Anywhere
Click Copy and paste your subscript text into social media, documents, messages, or anywhere Unicode is supported!
Tips & Information
Chemistry Formulas
Type the full formula normally (like H2SO4) and the numbers will automatically convert to subscript.
Quick Examples
Use the quick example buttons to try common formulas and see how they look in subscript.
Limited Letter Support
Only 17 lowercase letters have subscript versions in Unicode. Characters without subscript versions remain unchanged.