Acerca de Entidades HTML
Encode and decode HTML text
Encoding is useful when text must be displayed as text instead of interpreted as markup. It is context-dependent: HTML text, an HTML attribute, JavaScript, a URL, and a database query each have different escaping rules.
Cómo usar esta herramienta de desarrollo
- Choose encode or decode mode and paste the text you need to inspect.
- Run the conversion and compare characters such as ampersands, quotes, and angle brackets.
- Copy the result into the correct output context and apply that context's validation or sanitization rules.
Privacidad y tratamiento de datos
The conversion runs locally in your browser. The result is an encoded representation, not a security review; do not use it as a substitute for context-aware sanitization of untrusted input.
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Preguntas frecuentes
Does HTML entity encoding sanitize a page?
No. It transforms characters for one HTML context. Safe rendering also requires correct context handling, sanitization, and a safe page architecture.
Why are some characters encoded as numbers?
Numeric entities can represent a character by code point and are useful when a named entity is unavailable or ambiguous.
Should I encode an entire URL with this tool?
No. URLs have their own percent-encoding rules. Use the URL encoder for URL components and complete URIs.