​**HTML character codes** are used in HTML for adding entities or symbols that are not normally available on the keyboard.

Some important entities are:
|  Symbol   |  Name   |  HTML code   |
| --- | --- | --- |
|  A-Z   | Capital letters    | &#65 - &#90    |
|  a-z   | Small letters    | &#97 - &#122    |
|  ∀   |  For all   |  &#8704   |
|  ∅   |  Empty set   | &#8709    |
|  ©   |  Copyright   |  &#169   |
|  ®   |  Registered sign   |  &#174   |
|  ™   |  Trademark   |  &#8482   ||  ←   |  Left arrow   | &#8592    |
|  ↑   |  Up arrow   | &#8593    |
|  →   |  Right arrow   | &#8594    |
|   ↓	  | Down arrow   | &#8595   |

<html>
 <head>
 </head>
 <body>
   <p>This is the copyright sign: &#169</p>
   <p>This is the right arrow sign: &#8594</p>
 </body>
</html>

What are HTML character codes?

HTML codes for all keys

Code

Symbol	Name	HTML code
A-Z	Capital letters	&#65 - &#90
a-z	Small letters	&#97 - &#122
∀	For all	&#8704
∅	Empty set	&#8709
©	Copyright	&#169
®	Registered sign	&#174
™	Trademark	&#8482
↑	Up arrow	&#8593
→	Right arrow	&#8594
↓	Down arrow	&#8595