Rightwards Arrow Over Leftwards Arrow ⇄

⇄ (U+21C4) is a standard Unicode character that you can copy and paste anywhere text is accepted. This page provides a concise reference with safe tips, internal links, and practical guidance so you can use it reliably across apps and platforms.

What it is and where it’s used: Rightwards Arrow Over Leftwards Arrow is part of the Symbols family (block: Arrows). If you need styled or decorative alternatives, try our Fancy Text tool to generate compatible text that works in most modern interfaces.

History & usage: The symbol RIGHTWARDS ARROW OVER LEFTWARDS ARROW has the code point U+21C4 and belongs to the Arrows block in the Common script. It is a single character with a dual-direction form that combines two arrow heads. In Unicode, this character is identified by its name and its code point, which helps software render it consistently across systems. The character lies in the Arrows category and is part of the Common script, making it available for use in multilingual text without script-specific changes. Arrows commonly indicate direction and navigation cues in interfaces and documents. This usage helps users understand movement, flow, or toggling between options within a layout or workflow. As a graphic symbol, it can be placed alongside labels or controls where users need to perceive a change in position or orientation. The combination of a rightward and leftward arrow provides a concise cue for switching directions in a compact form. Overall, the character's encoding and category support its reliable use in digital text where directional guidance is needed.

Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+21C4 in many development tools or editors. Some operating systems provide a character viewer or input palette that lets you search by name or code and insert the glyph into documents.

Display and fallback: if you see an empty box (tofu) or a placeholder rectangle, the active font might not include this codepoint. Switching to a font with broader Unicode coverage or using a fallback font usually fixes the issue. On the web, ensure the page’s font stack includes a general‑purpose fallback.

Related references: browse the Categories for similar characters. When choosing a symbol, prefer the official codepoint for semantic clarity and better compatibility with search, copy, and accessibility tooling.

See our category page for related symbols.