HTML Entities Converter
Developer ToolsCharacters ↔ HTML entity codes
Quick Answer
HTML Entities Converter: Characters ↔ HTML entity codes. HTML Entities Converter uses standard developer formulas to compute accurate results instantly.
Direction:Format:
Input
Output
Why encode?
- 1< and > are tag delimiters — a literal < in text may be parsed as a tag start and break the page.
- 2& starts an entity reference — literal & must be written as &.
- 3In attribute values, quotes must be escaped to avoid premature attribute termination (XSS vector).
Common entities
| Char | Named | Decimal | Description |
|---|---|---|---|
| < | < | < | Less than |
| > | > | > | Greater than |
| & | & | & | Ampersand |
| " | " | " | Double quote |
| ' | ' | ' | Single quote |
| ␣ | |   | Non-breaking space |
| © | © | © | Copyright |
| ® | ® | ® | Registered |
| ™ | ™ | ™ | Trademark |
| ¥ | ¥ | ¥ | Yen |
| € | € | € | Euro |
| ° | ° | ° | Degree |
| ± | ± | ± | Plus-minus |
| × | × | × | Multiplication |
| ÷ | ÷ | ÷ | Division |
| ← | ← | ← | Left arrow |
| → | → | → | Right arrow |
| ♥ | ♥ | ♥ | Heart |
Rule of thumbAlways escape < > & " in user content
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How to Use
- Paste or type content: drop code/text into the HTML Entities Converter or fill the parameters.
- Choose mode/options: switch format, rules or processing as needed.
- Live output: results appear instantly — nothing is submitted, data stays in your browser.
- One-click copy: copy the output straight into your development environment.
Key Points
- HTML Entities Converter is a free online developer tool — open and use, no sign-up.
- All calculations run locally in your browser; your data never leaves the device.
- Key capability: Characters ↔ HTML entity codes.
- Results come with formulas and reference tables so you can verify every number.
Formula & How It Works
HTML Entities Converter formula
HTML Entities Converter uses standard developer formulas to compute accurate results instantly.
FAQ
How do I use the HTML Entities Converter?
Open the page and fill in the input fields — results update automatically. Characters ↔ HTML entity codes.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.
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Source & Updates
Based on RFC 4648, ECMA-262 and related specifications. Last updated: 2025-07
Last updated:
Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.
Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.
Cite this page: YiJianSuan. HTML Entities Converter[EB/OL]. https://www.yijiansuan.com/en/c/dev/html-entities
Results provided by this tool are for reference only and do not constitute professional advice.