HTML

HTML Entity Encoder

Encode and decode HTML entities in your browser with named, decimal, or hexadecimal output and full emoji support.

Text to entities

Escape the characters a browser would otherwise parse as markup.

Plain text

Entity format

Named mode falls back to a decimal reference when a character has no entity name.

Escape all non-ASCII characters

Off: only ampersand, angle brackets, and quotes. On: accents, symbols, and emoji as well.

Result

Output is generated locally and refreshes instantly.

<p class="note">Caffè & crème brûlée — 50% off! 🎉</p>

53 chars in / 79 chars out7 entities encoded

Common named entities

Frequently used references with their decimal and hexadecimal equivalents.

Character	Named	Decimal	Hex
&	&	&	&
<	<	<	<
>	>	>	>
"	"	"	"
'	'	'	'

©	©	©	©
®	®	®	®
™	™	™	™
…	…	…	…
—	—	—	—
–	–	–	–
‘	‘	‘	‘
’	’	’	’
“	“	“	“
”	”	”	”
«	«	«	«
»	»	»	»
°	°	°	°
±	±	±	±
×	×	×	×
÷	÷	÷	÷
€	€	€	€
£	£	£	£
¥	¥	¥	¥
§	§	§	§
¶	¶	¶	¶
·	·	·	·
•	•	•	•
†	&dagger;	†	†
‰	&permil;	‰	‰
←	←	←	←
↑	↑	↑	↑
→	→	→	→
↓	↓	↓	↓
↔	↔	↔	↔
∞	∞	∞	∞
≠	≠	≠	≠
≤	≤	≤	≤
≥	≥	≥	≥
≈	≈	≈	≈

What

HTML Entity Encoder definition

HTML entities are escape sequences such as & or — that stand in for characters a browser would otherwise treat as markup. This tool converts text into entities and back again, entirely on your own device.

Cases

Use Cases

Escape user-supplied text before injecting it into an HTML template.

Repair double-encoded strings pulled out of a CMS or database dump.

Turn emoji and accented names into numeric references for legacy HTML email.

Read raw API payloads where markup arrives entity-escaped.

Prepare code samples so tags render as text inside documentation.

Debug encoding bugs by comparing named, decimal, and hexadecimal output.

How To

How to encode and decode HTML entities

Pick a direction, paste your text, choose an output format, and copy the result.

Choose a direction

Open the Encode tab to escape text, or the Decode tab to turn entities back into characters.

Paste your text

Type or paste content into the input area; the result updates as you type.

Set the output format

Choose named, decimal, or hexadecimal references and decide whether non-ASCII characters are escaped.

Copy the result

Check the statistics line, then copy the output into your template or payload.

Knowledge

Understanding HTML entities

Named, decimal, and hexadecimal

Every entity is either a name such as ©, a decimal reference such as ©, or a hexadecimal reference such as ©. All three resolve to the same character, so pick whichever notation your target format supports.

Only five names are universal

XML and XHTML predefine just amp, lt, gt, quot, and apos. Outside HTML, numeric references are the portable choice.

Security and correctness notes

This decoder never uses innerHTML, so hostile input cannot execute while you inspect it, and entity names are looked up in a Map so keys like constructor cannot leak prototype values. Escaping is still context-sensitive: entity encoding protects element content, not attribute, URL, or script contexts.

FAQ

When do I need to encode HTML entities?

Whenever untrusted or user-supplied text is placed into HTML, so markup characters are shown literally instead of being parsed as tags.

Is entity encoding enough to prevent XSS?

It is the right defence for text placed in element content, but attribute, URL, CSS, and JavaScript contexts each need their own escaping rules.

Why does an emoji become a single reference?

The encoder walks the text by Unicode code point, so an emoji is emitted as one numeric reference instead of two broken surrogate halves.

What happens to entities the tool does not recognize?

They are left exactly as they were and counted separately, so nothing is silently deleted from your data.

Should I use named, decimal, or hexadecimal references?

Named references are the most readable, while numeric ones are safest in XML and legacy email clients that only know the five predefined names.

Does my text leave the browser?

No. Encoding and decoding run entirely on your device and nothing is uploaded.

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