Which characters are encoded by default?

The five reserved HTML characters: &, , ", and '.

What does 'encode all non-ASCII' do?

It converts every character beyond basic ASCII into a numeric HTML entity, useful for maximum compatibility.

How does decoding work?

It uses the browser's own HTML parser to resolve entities, so all named and numeric entities are supported.

Is my data uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your input never leaves your device and nothing is logged or stored on our servers.

Does it work offline and on mobile?

Yes. Once the page has loaded it keeps working without a network connection, and the layout is responsive so it stays usable on phones and tablets.

HTML Entity Encoder

Encode or decode HTML entities in text.

Support

Works Offline

Privacy First

No Login

No API

Encode all non-ASCII characters

Input

Output

&lt;div class=&quot;greeting&quot;&gt;Hello &amp; &quot;world&quot;&lt;/div&gt;

About the HTML Entity Encoder

Convert reserved HTML characters like <, >, &, and quotes into safe entities, or decode HTML entities back into plain text. Optionally encode every non-ASCII character as a numeric entity.

Examples

Encode markup

<div>Hi & "bye"</div>

Output

&lt;div&gt;Hi &amp; &quot;bye&quot;&lt;/div&gt;

Keyboard shortcuts

Copy the main outputCtrl / ⌘ + Shift + C
Download the resultCtrl / ⌘ + S
Share this toolCtrl / ⌘ + Shift + S
Reset the inputsAlt + R
Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

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Version 1.0.0 · Updated 2026-08-06 · Runs entirely in your browser