Click keys to type math into the box: powers like x², roots like ∛, fractions like ³⁄₈, Greek letters, calculus and set symbols. Choose Unicode text to paste into any chat, email or document, or LaTeX for papers and equation editors. The other format and a rendered preview update as you type.
Last updated:
Fraction
/
Root
√
Power / index
Same math as LaTeX
Rendered preview
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How to use the Online Math Keyboard
Choose the format: Unicode text for chats, email and documents, or LaTeX for papers, Overleaf and equation editors.
Type and click keys: type numbers and letters normally and click keys for symbols. Switch key groups with the tabs.
Add exponents and subscripts with x², x³ or the Superscript and Subscript mode buttons (Ctrl+. and Ctrl+,), then type the raised or lowered characters.
Build fractions and roots in the Powers & roots tab: fill in the boxes and press Insert.
Copy your math, or copy the converted version shown below the keyboard.
Unicode text is best for short expressions anywhere that accepts plain text: messages, forum posts, spreadsheets, slides, code comments, social media and product listings. It needs no special software.
LaTeX is best for documents with many formulas, stacked fractions, integrals with limits or matrices: Overleaf, academic papers, Markdown with math ($…$), Jupyter notebooks, many learning platforms and the equation editor in Microsoft Word (which accepts much of the same syntax).
For homework answer boxes that reject special characters, the LaTeX-like plain form such as x^2 and sqrt(x) is the safest fallback.
Keyboard shortcuts
Shortcut
Action
Ctrl + .
Toggle superscript mode
Ctrl + ,
Toggle subscript mode
Esc
Leave superscript or subscript mode
Ctrl + Z
Undo, including symbols inserted with on-screen keys
Frequently asked questions
What is the difference between Unicode text and LaTeX output?
Unicode text uses real characters such as ², √, π and ≤, so it can be pasted into almost anything: chats, email, social posts, spreadsheets or a Word document. LaTeX is a markup language like x^{2} or \frac{a}{b} that has to be rendered by a LaTeX system, Overleaf, a Markdown math block or an equation editor, but it can express any formula.
How do I type an exponent like x squared?
Press the x² key for squared or x³ for cubed. For any other power, turn on Superscript mode and type the exponent, for example 1 0 to get x¹⁰, then turn it off. In LaTeX mode the same button inserts ^{ } and puts your cursor inside.
Why can't some letters be made superscript or subscript?
Unicode only includes raised and lowered versions of digits, + − = ( ), most lowercase letters, some capitals and a few Greek letters. For example there is no subscript b, c or d and no superscript q. When a character has no version, the keyboard keeps it normal and tells you; use LaTeX output if you need full control.
How do I type a fraction?
Common fractions have their own characters: ½ ⅓ ⅔ ¼ ¾ ⅛ and more are on the Powers & roots tab. For any other fraction, type the numerator and denominator in the fraction builder: digits become a raised and lowered fraction such as ³⁄₁₆, and longer expressions become (x+1)/(x−1). In LaTeX the key inserts \frac{}{}.
Can I convert LaTeX to Unicode or Unicode to LaTeX?
Yes. Switching format converts what you typed, and the panel below always shows the other version. The converter understands \frac, \sqrt, ^ and _, Greek letters, operators, arrows, set and logic symbols and common functions like \sin and \log. Constructs with no Unicode equivalent, such as matrices, are kept as typed.
Will the symbols display on every device?
All the characters used are standard Unicode supported by modern Windows, macOS, iOS, Android and Linux fonts. A few rarer ones, such as superscript capitals or combining overlines, can look slightly different from font to font.
Does it work with my own keyboard?
Yes. The box is a normal text field, so you can type, paste, select and undo as usual. Clicking an on-screen key inserts at the cursor or wraps the selected text, and Superscript and Subscript modes also convert what you type on your physical keyboard.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.