Best Free Online Developer Tools to Use in 2026
A practical, opinionated list of the best free online developer tools worth using in 2026, organized by category so you can find what you need fast.
Aug 08, 2026
Minus Sign is a mathematical operators, comparison symbols, and notation characters. This HTML entity enables web developers to display this character reliably across all browsers without encoding issues.
U+2212
−
\2212
Use this HTML entity in mathematical expressions and equations. For example, ≠ for not equal, ≤ for less than or equal, ∞ for infinity.
Mistake: Using a hyphen - instead of the proper minus sign −
Fix: Use − (−) for subtraction. The hyphen - is shorter and designed for word hyphenation, not mathematics.
Mistake: Confusing − (minus) with – (en-dash) or — (em-dash)
Fix: The minus sign − is the same width as the plus sign +. The en-dash – is wider, and the em-dash — is widest. Each has a distinct purpose.
Select any code to highlight it before copying.
| Unicode | U+2212 |
|---|---|
| Hex Code | − |
| HTML Code | − |
| HTML Entity | − |
| CSS Code | \2212 |
| Windows Shortcut | |
| Mac Shortcut | |
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