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
Leftwards Arrow is a arrow symbols for direction, navigation, and flow. This HTML entity enables web developers to display this character reliably across all browsers without encoding issues.
U+2190
←
\2190
Use this HTML entity in user interfaces, diagrams, and documentation to indicate direction, movement, or relationships between elements.
Mistake: Using <- instead of ← in mathematical notation
Fix: Use ← (←) for leftwards arrows in mathematics. The ASCII <- notation is not standard mathematical notation.
Mistake: Confusing ← (left arrow) with ⇐ (left double arrow)
Fix: Use ← for simple direction and ⇐ (⇐) for logical "if" (Q ⇐ P means "Q if P").
Select any code to highlight it before copying.
| Unicode | U+2190 |
|---|---|
| Hex Code | ← |
| HTML Code | ← |
| HTML Entity | ← |
| CSS Code | \2190 |
| Windows Shortcut | |
| Mac Shortcut | |
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