Superscript & Subscript Text Generator
Convert any text to Unicode superscript (x², E=mc²) or subscript (H₂O, CO₂) characters instantly. The output is plain text — paste it into Twitter, WhatsApp, Instagram, Word, or any app that accepts text. Free, private, and no signup required.
Why Use Our Superscript & Subscript Text Generator?
Instant Real-Time Conversion
Superscript and subscript text generates instantly as you type — no button to press, no delay. Switch between modes and see the output update live.
Works Everywhere — Plain Text Unicode
The output uses real Unicode characters, not HTML tags. Paste superscript and subscript text into Twitter, LinkedIn, WhatsApp, Instagram, Word, Notion, and any text field that accepts Unicode.
100% Private — No Upload
All conversion happens locally in your browser. Your text never leaves your device. No account, no tracking, no data stored anywhere — completely private.
Full Character Coverage
Supports digits 0–9, all 26 lowercase and uppercase letters, and common math symbols (+, −, =, parentheses). A coverage bar shows exactly which characters converted successfully.
Common Use Cases for the Superscript & Subscript Text Generator
Chemical Formulas
Write H₂O, CO₂, H₂SO₄, and other chemical formulas using subscript numbers anywhere — in social media posts, chat messages, and documents that don't support rich text.
Mathematical Notation
Express equations like E=mc², x²+y²=z², and aⁿ using superscript characters. Perfect for sharing math in plain-text environments like Twitter, Reddit, and Slack.
Social Media Bios & Captions
Add superscript and subscript text to Instagram bios, Twitter profiles, and TikTok captions for a unique typographic style that stands out in feeds.
Footnotes & References
Add superscript footnote markers (¹, ², ³) to plain-text documents, emails, and README files where HTML or Markdown footnote syntax isn't supported.
Code Comments & Documentation
Use superscript and subscript in code comments, README files, and API documentation to express units, exponents, and version numbers in a visually clear way.
Trademarks & Legal Symbols
Generate superscript ™, ®, and © symbols for brand names and product titles in plain-text contexts where the standard keyboard shortcut isn't available.
Understanding Superscript & Subscript Text
What Are Superscript and Subscript Characters?
Superscript characters appear above the normal text baseline — like the exponent in x² or the footnote marker in reference¹. Subscript characters appear below the baseline — like the numbers in H₂O or CO₂. In traditional word processors, these are achieved with formatting tags. Our superscript and subscript text generator uses actual Unicode characters that look raised or lowered in any font, without any formatting — making them pasteable anywhere.
How Our Superscript & Subscript Text Generator Works
The conversion happens in three steps, entirely in your browser:
- Input your text: Type or paste any text into the input field. The superscript and subscript text generator processes it character by character in real time.
- Character mapping: Each character is looked up in a Unicode superscript or subscript map. Digits, letters, and common math symbols all have dedicated Unicode equivalents. Characters without a match are passed through unchanged.
- Copy the output: Click the Copy button next to the output panel. The converted text is now on your clipboard — paste it into any app, website, or document.
What Characters Are Supported?
The Unicode standard includes superscript and subscript equivalents for:
- Digits (0–9): Full coverage for both superscript (⁰¹²³⁴⁵⁶⁷⁸⁹) and subscript (₀₁₂₃₄₅₆₇₈₉).
- Lowercase letters (a–z): Full superscript coverage (ᵃᵇᶜ…); subscript coverage is partial — some letters use visually similar Unicode characters.
- Uppercase letters (A–Z):Superscript coverage for most letters (ᴬᴮᶜ…); subscript uppercase falls back to lowercase equivalents where Unicode doesn't define a distinct form.
- Math symbols: Plus (⁺₊), minus (⁻₋), equals (⁼₌), and parentheses (⁽₍⁾₎) are supported in both modes.
Why Use Unicode Instead of HTML Tags?
HTML superscript (<sup>) and subscript (<sub>) tags only work in web pages and rich-text editors. Unicode superscript and subscript characters work in plain text — Twitter posts, WhatsApp messages, Instagram captions, Slack, Discord, email subject lines, and anywhere else that accepts text. The characters are part of the Unicode standard and render correctly on all modern operating systems and devices.
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Frequently Asked Questions About the Superscript & Subscript Text Generator
A superscript and subscript text generator converts regular characters into their Unicode superscript (raised) or subscript (lowered) equivalents. Unlike HTML tags, the output is plain text that works in any app — social media, messaging, documents, and more.
Yes. Because the output uses real Unicode characters — not HTML or formatting codes — you can paste superscript and subscript text into Twitter/X, Instagram, LinkedIn, Facebook, WhatsApp, Telegram, Discord, and virtually any platform that accepts text input.
Completely. All conversion happens locally in your browser using JavaScript. Your text is never uploaded to any server, never stored, and never transmitted anywhere. The tool works entirely offline once the page has loaded.
Yes — 100% free, forever. No signup, no account, no premium tier, no ads. The superscript and subscript text generator is a fully free browser-based tool with no usage limits.
The Unicode standard does not define superscript or subscript equivalents for every character. Most letters, digits, and common math symbols are covered. Special characters, accented letters, and punctuation marks that lack Unicode equivalents are passed through unchanged. The coverage bar shows the percentage of your input that converted successfully.
HTML <sup> and <sub> tags only work inside web pages and rich-text editors that render HTML. Unicode superscript and subscript characters are plain text — they look raised or lowered in any font without any formatting. This means they work in plain-text fields like Twitter, WhatsApp, and email subject lines where HTML is not supported.
Yes — use subscript mode for chemical formulas. Type "H2O" and the subscript generator converts it to H₂O. Similarly, CO2 becomes CO₂, H2SO4 becomes H₂SO₄, and so on. All digits 0–9 have full subscript Unicode coverage.
Yes — use superscript mode for exponents. Type "x2" and the superscript generator converts it to x². Type "E=mc2" to get E=mc². All digits and most letters have superscript Unicode equivalents, making it easy to write mathematical notation in plain text.
There is no hard limit. The tool processes everything locally in your browser, so the only constraint is your device's memory. In practice, any reasonable amount of text — from a single character to several paragraphs — converts instantly.