Superscript and Subscript Generator Online Tool Free
Our Superscript & Subscript Generator lets you instantly convert normal text into superscript (², ³, x²) or subscript (₂, ₓ, H₂O) using real Unicode characters, not fake small font styling. Whether you are writing chemical formulas, math equations, physics expressions, academic content, or WordPress posts, you get precise copy and paste results.
Unlike basic generators that force your entire line into one format, this tool offers Formula mode (only digits after letters change, ideal for CO₂ and H₂O) and Full mode (convert the whole input). Switch Subscript and Superscript when you need both styles in the same project. No installation, no login, and no coding required.
Start using the tool below. Paste CO₂, H₂O, x₁, or x² anywhere Unicode is supported.
No data stored • 100% client side • Works offline
Subscript, superscript, and small text use real Unicode characters (₀ to ₉, ₐₑₒ…). Bold and Italic checkboxes only work when pasting into Word and Google Docs. They do NOT work in social media or .txt files. For chemistry formulas like CO₂, use Formula mode with Numbers Only: On.
Clipboard access was denied
To allow copy (and paste with formatting in Word/Docs): click the lock or info icon in the address bar → Site settings → Clipboard → set to Allow. Then try Copy to Clipboard again.
How do I copy and paste subscript text?
Type CO2, H2O, or x1 in the tool, choose Subscript, click Copy, and paste. You get real Unicode subscript, so the formatting travels with the text instead of breaking when you move it to another app.
- Convert normal text to subscript text in seconds.
- Copy the subscript output with a single click.
- Paste into Word, Google Docs, PowerPoint, WhatsApp, Discord, and more.
How does a text to subscript converter work?
It maps each supported character to a Unicode subscript or superscript code point in your browser. Nothing is sent to a server for conversion, after the first load it can work offline. Unsupported letters (like subscript b) are left normal; see the FAQ below.
How do I write CO₂, H₂O, or C₆H₁₂O₆ in subscript?
Most students type the plain formula first (CO2, H2O). Turn on Formula mode and Numbers Only: On so only digits after letters become subscript, letters stay normal, which matches how chemistry notation is usually written.
Some apps let you format one character at a time in Word or Docs; Unicode paste is faster when you need the same symbol in email, slides, and chat without redoing formatting each time.
- CO2 → CO₂
- H2O → H₂O
- C6H12O6 → C₆H₁₂O₆
What is a subscript?
A subscript sits below the baseline, like the 2 in H₂O. Unicode gives you actual characters (U+2080 to U+209C for many digits), not a smaller font style that disappears when you copy text between apps.
- Chemical formulas (H₂O, CO₂, C₆H₁₂O₆)
- Mathematical notation (x₁, aₙ, variables)
- Scientific notation and equations
- Footnote references and indices
- Molecular formulas in documents
How to Use the Subscript Generator
This subscript and superscript generator is designed to be easy for everyone. Follow the steps below to format your text perfectly. Use subscript for chemistry formulas (subscript chemistry) and math; use superscript for exponents. Small text and tiny numbers copy paste modes are also available.
Step 1: Choose a Conversion Type
Select the style you want for your text. You can switch anytime.
- Subscript | Characters sit below the baseline (e.g. H₂O, CO₂, x₁). Best for chemistry, math variables, and scientific notation.
Extra features:
- Superscript | Characters sit above the baseline (e.g. x², E=mc²). Superscript copy paste works the same way. Best for exponents and footnotes.
- Small Text | Uses modifier letters for compact styling.
Tip: Subscript is best for chemical formulas. Superscript is best for exponents and powers.
Step 2: Choose a Conversion Mode
At the top of the center panel, you will see two modes. Each works differently.
- Formula mode | Converts only numbers that immediately follow letters. Ideal for subscript chemistry and math formulas.
- Input: H2O, CO2, C6H12O6
- Output: H₂O, CO₂, C₆H₁₂O₆
- Full mode | Converts every supported letter and number. Use when you want whole words or mixed text in subscript/superscript.
- Input: hello, x1n2
- Output: ₕₑₗₗₒ, ₓ₁ₙ₂
Tip: For H₂O, CO₂, and similar formulas, always use Formula mode.
Step 3: Set Numbers Only
This option controls whether letters are converted or only numbers.
- Numbers Only: ON | Only digits convert (H2O becomes H₂O; letters stay normal). Use for chemistry formulas.
- Numbers Only: OFF | Letters and numbers both convert. Use for full subscript text (e.g. xₙ, aₘ).
Step 4: Enter Your Text
Click inside the input box and type or paste your content. You can write:
- Chemical formulas (H2O, CO2, H2SO4)
- Mathematical expressions (x1, x2, an)
- Physics equations (E=mc2)
- Normal text with numbers
You can also use Upload File to load text from a .txt file.
Step 5: Use Quick Example Buttons
Above the tool, use the built in buttons to insert formatted examples instantly:
- H₂O (water)
- CO₂ (carbon dioxide)
- x₂ (variable with subscript)
- C₆H₁₂O₆ (glucose)
Clicking a button inserts the plain input (e.g. H2O) and converts it automatically.
Step 6: Use Auto or Click Generate
With Auto: ON, the output updates as you type. No need to click anything.
With Auto: OFF, click the Generate button to convert. The Generate button applies the conversion on demand.
Tip: Use Auto ON for quick edits. Use Auto OFF if you prefer to control when conversion happens.
Step 7: Customize for Word and Google Docs (Optional)
If you will paste into Word or Google Docs, you can tick Bold or Italic before copying. The pasted text will keep that formatting. These options do not work in social media or .txt files.
Step 8: Copy or Download the Result
Click Copy to Clipboard to copy the formatted text, or use the Copy button in the output panel. Click Download to save as a .txt file.
Paste the result into Word, Google Docs, email, social media, or any app that supports Unicode.
Clear Input or Reset (If Needed)
Click Clear in the input panel to empty the input box. Click Reset to clear both input and output and start fresh.
Subscript Symbol (Copy and Paste)
Each subscript symbol below is a real Unicode character. Copy subscript numbers (₀ to ₉) and letters (ₐ to ₓ) from the tables in the next sections. Paste into Word, Excel, PowerPoint, Discord, WhatsApp, or any app that supports Unicode.
Subscript 0 to 9 Copy and Paste
Unicode subscript numbers 0 to 9 (U+2080 to U+2089). Select and copy any character below to use as subscript 0, subscript 1, subscript 2, and so on.
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|
| ₀ | ₁ | ₂ | ₃ | ₄ | ₅ | ₆ | ₇ | ₈ | ₉ |
Use these digits to build math indices and chemistry formulas like x₁, x₂, x₃ or CO₂ and H₂O. For a full sentence or word in subscript, switch the tool to Full mode.
Subscript Letters (Unicode Reference)
Subscript letters copy and paste as real Unicode characters. Letters b, f, and q have no Unicode subscript form, which is why there is no dedicated subscript B or subscript f character in Unicode. When you need them, use regular letters with formatting in Word or PowerPoint, or write variables such as B₁ and fₙ instead.
| a | e | h | k | l | m | n | o | p | s | t | x |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ₐ | ₑ | ₕ | ₖ | ₗ | ₘ | ₙ | ₒ | ₚ | ₛ | ₜ | ₓ |
Real-World Subscript Examples
| Chemistry | Input | Output |
|---|---|---|
| Water | H2O | H₂O |
| Carbon dioxide | CO2 | CO₂ |
| Glucose | C6H12O6 | C₆H₁₂O₆ |
| Mathematics | Input | Output |
|---|---|---|
| Variable | x1 | x₁ |
| Index | n | ₙ |
| Power | x^2 | x² |
| Pythagorean | a^2 + b^2 | a² + b² |
| Variable | x2 | x₂ |
| Physics | Input | Output |
|---|---|---|
| Mass energy | E=mc2 | E=mc² |
| Velocity squared | v^2 | v² |
| Initial velocity | v0 | v₀ |
What is the difference between subscript and superscript?
Subscript is below the line (H₂O, x₁). Superscript is above (x², ¹). Use Subscript or Superscript on the tool before you copy.
| Type | Position | Example |
|---|---|---|
| Subscript | Below baseline | H₂O, CO₂, x₁ |
| Superscript | Above baseline | x², E=mc² |
Where Can You Use Subscript Text?
- Microsoft Word (subscript in Word)
- Google Docs (subscript in Google Docs)
- Excel (subscript in Excel) and PowerPoint (subscript in PowerPoint)
- Discord (subscript in Discord) and WhatsApp (subscript in WhatsApp)
- Social media (Twitter, Facebook, Instagram)
- Email (Gmail, Outlook)
- WordPress and HTML editors
- LaTeX and markdown
- Plain text files (.txt)
How to Use Subscript in WhatsApp and PowerPoint
Can you use subscript in WhatsApp?
WhatsApp has no subscript button in the chat composer. On most phones, pasted Unicode still displays correctly, CO₂ and H₂O usually look right; very old fonts may show a box for rare characters.
Generate subscript here, tap Copy, paste in the message field. Full steps: subscript in WhatsApp guide.
How do you add subscript or superscript in PowerPoint?
In PowerPoint you can use built in formatting, keyboard shortcuts, the Font dialog, or paste Unicode from this generator. See our full guide: 5 methods for subscript and superscript in PowerPoint.
Why use Unicode instead of app formatting alone?
- Word or Docs formatting often breaks when you paste into WhatsApp, Gmail, or another editor.
- Unicode subscript and superscript are real characters, one copy works across many apps.
- Runs in the browser; no install. Free, no signup.
- Works offline after the first page load.
What mistakes break subscript copy paste?
- Using font “subscript” styling instead of Unicode, copy often strips it.
- Leaving Numbers Only off when you only wanted H₂O-style digits subscript.
- Expecting bold/italic from this tool in plain .txt files (only Word/Docs get that when you enable those checkboxes).
- Assuming every letter has a Unicode subscript (b, f, and q do not).
Frequently Asked Questions
What is a subscript generator?
A subscript generator converts plain text into Unicode subscript characters. Paste the result into Word, Google Docs, or any app.
How do I write H2O or CO2 in subscript?
Type H2O or CO2 in the tool, select Formula mode with Numbers Only ON, then click Generate. Copy the output (H₂O or CO₂) and paste it into your document, slide, or chat.
How do I copy and paste subscript text?
Type or paste your text into the input box, choose Subscript, then click Copy. The tool converts the characters to Unicode subscript so you can copy and paste them anywhere that supports Unicode.
How do I use subscript text in WhatsApp?
Generate the subscript version of your text here, tap Copy, then paste it into your WhatsApp message. WhatsApp does not have a formatting button for subscript, but it displays Unicode subscript characters correctly on modern devices.
Why is there no subscript B or subscript f?
The Unicode standard does not define characters for subscript b, subscript f, or subscript q. To simulate them, use normal letters with formatting in Word or PowerPoint, or combine letters with subscript numbers such as B₁ and fₙ.
How do I make 1 footnote copy and paste?
For footnotes, use the superscript ¹ character rather than subscript ₁. Choose Superscript in the tool, type 1, and copy the output to paste as a footnote marker in Word, Google Docs, or PowerPoint.
Does subscript work in Google Docs?
Yes. Subscript text from this tool pastes correctly in Google Docs. Bold and Italic options apply when pasting there.
Are these real Unicode characters?
Yes. Output uses Unicode subscript range U+2080 to U+209C. They are real characters, not images or CSS.
Is this subscript generator free?
Yes. Free to use, runs in the browser, works offline after the first load.
What is subscript font?
Subscript font refers to Unicode subscript characters (₀₉, ₐₑₒ…) that display below the baseline. This tool outputs real Unicode subscript font, not styled text, so it copies and pastes correctly in Word, Excel, and other apps.
How do I add subscript in Excel?
Use this tool to create subscript text, then copy and paste into Excel. The Unicode subscript characters will display correctly in Excel cells.
How do I use subscript in Discord?
Generate subscript text here, copy it, and paste into Discord. Unicode subscript works in Discord messages.
Is the output Unicode or HTML?
This tool outputs Unicode characters (real text), not HTML tags like <sub>. Unicode copies correctly into Word, Google Docs, WhatsApp, and most modern apps.
Can I use subscript and superscript together?
Yes. Switch between Subscript and Superscript on the tool, or convert chemistry with Formula mode (H₂O) and exponents separately (x²). For a dedicated superscript explainer, see what is superscript.
What is the opposite of subscript?
Superscript is the opposite, it sits above the baseline (for example x² or footnote ¹). Read what is superscript or subscript vs superscript.
How do I add subscript in PowerPoint?
Use Ctrl + = (subscript) or Ctrl + Shift + + (superscript) after selecting text, or paste Unicode from this generator. Full steps: subscript in PowerPoint guide.