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Encodeur/Décodeur HTML

Échappez ou déséchappez les entités HTML pour prévenir le XSS.

Introduction

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

Formule

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

Étape par étape

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

Exemple concret

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

Questions Fréquentes

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.

À propos de Encodeur/Décodeur 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.