HTML Entities & Unicode Map Online | Encode & Decode HTML Entities

Free Online HTML Entities & Unicode Map

Search and inspect HTML entity tags and hex/dec codes, or encode/decode text strings dynamically.

Entities & Symbol Map

Inspect Symbol: ©

Named Entity

Decimal Code

Hex Code

Unicode Notation

U+00A9

HTML Encoder & Decoder

Raw Text Input

Converted Output

The Complete Guide to HTML Entities & Unicode Character Codes

In web development, certain characters are reserved by HTML to structure elements and parse markup. If you insert raw angle brackets (< or >) or ampersands (&) directly into text nodes, browsers may interpret them as HTML tags, corrupting the layout or opening security vulnerabilities like Cross-Site Scripting (XSS).

Essential HTML Reserved Characters & Common Symbols

Glyph	Description	Named Entity	Decimal Code	Hex Code
&	Ampersand	&	&	&
<	Less Than	<	<	<
>	Greater Than	>	>	>
"	Double Quotation Mark	"	"	"
©	Copyright Symbol	©	©	©
™	Trademark Symbol	™	™	™

Named vs Numeric Entity References

Named entities (like € for €) are easy to remember and read during code reviews. However, numeric references (decimal € or hex €) provide universal compatibility across XML, SVG, and strict parsers that may not have full named entity dictionaries loaded.

Frequently Asked Questions

What are HTML entities and why are they needed?

HTML entities are strings that start with an ampersand (&) and end with a semicolon (;). They are used to display reserved characters (like <, >, and &) without interfering with HTML syntax, as well as invisible characters and symbols not readily available on keyboards.

What is the difference between named entities, decimal codes, and hex codes?

Named entities use mnemonic names (e.g., © for ©), decimal codes use numeric Unicode code points with a hash (e.g., ©), and hex codes use hexadecimal notation (e.g., ©). All three render identically in modern browsers.

Why must characters like <, >, and & be escaped in HTML?

In HTML, characters such as < and > define tags, while & introduces entities. Failing to escape these characters in raw text can break page layout or cause Cross-Site Scripting (XSS) vulnerabilities.

Can I use this HTML Entities Map completely offline?

Yes. The entire character database and encoder/decoder engine execute 100% client-side in your web browser. You can install or run it offline as a PWA.

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