Technical Symbols | HTML Entity & Character Reference

Entities Technical Symbols

Unicode provides technical symbols used in computing, keyboards, engineering, electronics, mathematics, diagrams, and other specialized applications. These characters make it possible to display many common technical signs directly in HTML.

Some technical symbols have named HTML character references, while others can be represented with decimal or hexadecimal numeric character references. They can also be entered directly in a UTF-8 HTML document.

Keyboard & Computing Symbols

Keyboard and computing symbols are commonly used in software documentation, instructions, menus, and user interfaces to represent keys and computer-related actions.

Character	Named	Decimal	Hexadecimal	Description
⌘	—	`⌘`	`⌘`	Place of interest sign, commonly used for the Command key
⌥	—	`⌥`	`⌥`	Option key
⌫	—	`⌫`	`⌫`	Erase to the left
⌦	—	`⌦`	`⌦`	Erase to the right
⌨	—	`⌨`	`⌨`	Keyboard
⎋	—	`⎋`	`⎋`	Broken circle with northwest arrow, commonly used for Escape
⇥	—	`⇥`	`⇥`	Rightwards arrow to bar, commonly used for Tab
⇧	—	`⇧`	`⇧`	Upwards white arrow, commonly used for Shift
↵	`&crarr;`	`↵`	`↵`	Downwards arrow with corner leftwards, commonly used for Return

Technical Operators

Technical operators are used in mathematics, engineering, logic, diagrams, and scientific notation. Many of these symbols also have named HTML character references.

Character	Named	Decimal	Hexadecimal	Description
⌈	`&lceil;`	`⌈`	`⌈`	Left ceiling
⌉	`&rceil;`	`⌉`	`⌉`	Right ceiling
⌊	`&lfloor;`	`⌊`	`⌊`	Left floor
⌋	`&rfloor;`	`⌋`	`⌋`	Right floor
〈	`&lang;`	`〈`	`〈`	Left-pointing angle bracket
〉	`&rang;`	`〉`	`〉`	Right-pointing angle bracket
⌿	—	`⌿`	`⌿`	APL functional symbol slash bar
⍀	—	`⍀`	`⍀`	APL functional symbol backslash bar

Electrical & Engineering Symbols

Unicode includes symbols used in electrical, engineering, scientific, and technical contexts. Their exact meaning can depend on the field in which they are used.

Character	Named	Decimal	Hexadecimal	Description
⌁	—	`⌁`	`⌁`	Electric arrow
⌂	—	`⌂`	`⌂`	House
⌇	—	`⌇`	`⌇`	Wavy line
⌖	—	`⌖`	`⌖`	Position indicator
⌗	—	`⌗`	`⌗`	Viewdata square
⌙	—	`⌙`	`⌙`	Turned not sign
⌬	—	`⌬`	`⌬`	Benzene ring
⏚	—	`⏚`	`⏚`	Earth ground

Control & Special Symbols

Control and special technical symbols are used to represent equipment controls, user-interface actions, and other standardized functions.

Character	Named	Decimal	Hexadecimal	Description
⏏	—	`⏏`	`⏏`	Eject symbol
⏩	—	`⏩`	`⏩`	Black right-pointing double triangle
⏪	—	`⏪`	`⏪`	Black left-pointing double triangle
⏭	—	`⏭`	`⏭`	Black right-pointing double triangle with vertical bar
⏮	—	`⏮`	`⏮`	Black left-pointing double triangle with vertical bar
⏯	—	`⏯`	`⏯`	Black right-pointing triangle with double vertical bar
⏸	—	`⏸`	`⏸`	Double vertical bar
⏹	—	`⏹`	`⏹`	Black square for stop
⏺	—	`⏺`	`⏺`	Black circle for record
⏻	—	`⏻`	`⏻`	Power symbol
⏼	—	`⏼`	`⏼`	Power on-off symbol
⏽	—	`⏽`	`⏽`	Power on symbol
⏾	—	`⏾`	`⏾`	Power sleep symbol

Using Technical Symbols in HTML

Technical symbols can be entered directly in UTF-8 HTML or represented with named, decimal, or hexadecimal character references. The appearance of some symbols can vary slightly depending on the browser, operating system, and font.

<p>Return: &crarr;</p>
<p>Command: &#8984;</p>
<p>Keyboard: &#9000;</p>
<p>Power: &#x23FB;</p>

Browser Result

Return: ↵

Command: ⌘

Keyboard: ⌨

Power: ⏻