The Outlined Greek Cross symbol (โ). Copy and paste it, or use its Unicode, HTML, and CSS codes.
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The quickest way is to copy โ from this page and paste it anywhere. You can also insert it with its Unicode, HTML, or alt code listed above.
โ is U+2719 (decimal 10009).
Use ✙ in HTML to render โ on a web page.
On Windows you can type it with Alt+10009 (hold Alt and enter the number on the numeric keypad).
Yes โ copying is completely free and unlimited, and works right in your browser with no sign-up.