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Codificador/Decodificador de HTML

Escapa o desescapa entidades HTML para prevenir XSS.

Introducción

HTML Encoder / Decoder — Escape or unescape HTML entities to prevent XSS. Enter Mode, Text to get an instant, accurate result.

Fórmula

Encodes reserved HTML characters (<, >, &, ", ') into their entity equivalents (or decodes entities back to characters).

Paso a paso

  1. Enter the Mode.
  2. Enter the Text.
  3. Click Calculate to see your result instantly.

Ejemplo del mundo real

Example: With Mode = encode, the HTML Encoder / Decoder gives Encoded: &lt;b&gt;Bold&lt;/b&gt; &amp; &quot;quoted&quot;.

Preguntas Frecuentes

Why encode HTML characters?
So user-supplied text displays literally on a web page instead of being interpreted as HTML markup — an important defense against XSS.
Does this cover all HTML entities?
It covers the core reserved characters (<, >, &, quotes) most commonly needed for safe display.
What inputs does the HTML Encoder / Decoder need?
You'll need to provide: Mode, Text. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the HTML Encoder / Decoder?
The HTML Encoder / Decoder applies the formula exactly as calculated — Encodes reserved HTML characters (<, >, &, ", ') into their entity equivalents (or decodes entities back to characters). — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the HTML Encoder / Decoder free to use?
Yes, the HTML Encoder / Decoder is completely free, requires no signup, and runs instantly in your browser.

Acerca de Codificador/Decodificador de HTML

The HTML Encoder / Decoder uses a real, verifiable formula — Encodes reserved HTML characters (<, >, &, ", ') into their entity equivalents (or decodes entities back to characters). — so results are accurate every time, not an approximation.