Anticlockwise Top Semicircle Arrow ↶

The Anticlockwise Top Semicircle Arrow character (↶) is a standard HTML entity defined in the HTML specification. In HTML source code, it can be written using the named entity reference ↶, the decimal numeric character reference ↶, or the hexadecimal numeric reference ↶. The character is assigned Unicode code point U+21B6 in the Universal Character Set.

The anticlockwise top semicircle arrow curves from right to left over the top. It represents undo operations, counterclockwise rotation, and going back to a previous state. The semicircular path distinguishes it from straight arrows and implies a reversal or return motion.

Arrow entities serve as directional indicators in navigation interfaces, mathematical expressions, flowcharts, and textual content throughout the web. Because they render as scalable text characters rather than bitmap images, HTML arrow entities are resolution-independent, styleable with CSS properties like color and font-size, and fully accessible to assistive technologies including screen readers.

When deciding how to encode the Anticlockwise Top Semicircle Arrow character in your HTML documents, the named entity ↶ is generally the most readable choice for developers reviewing or maintaining source code. The decimal form ↶ and hexadecimal form ↶ are equally valid alternatives that work in contexts where named entities may not be supported, or when generating HTML output programmatically from server-side code. All three representations produce identical visual output in every modern web browser.

Use this arrow for undo buttons, counterclockwise rotation indicators, and 'go back' actions in interfaces. It provides a more descriptive alternative to a simple left arrow when the action involves reverting or undoing rather than simple backward navigation.