How do I use a html encoder in Node.js?

Node.js provides built-in or community packages for html encoder functionality. See the code example above for a production-ready pattern you can copy into your project.

Is there a recommended html encoder library for Node.js?

Yes. The code example above shows the most widely-used approach in the Node.js ecosystem. For client-side use cases, you can also use DevToolHQ's online html encoder at devtoolhq.com/tools/html-encoder.

Can I use DevToolHQ's html encoder with Node.js?

Absolutely. DevToolHQ's html encoder runs 100% client-side in your browser, making it perfect for quick debugging during Node.js development. No data is sent to any server.

Last updated: April 13, 2026

HTML Encoder for Node.js Developers

Quick Answer

DevToolHQ's html encoder works great alongside Node.js. Use it to quickly html encoder during development, then integrate the pattern into your Node.js codebase using the code example below.

Use Cases in Node.js

1.Use HTML Encoder in Node.js projects

Node.js Code Example

Node.js

// Built-in — no dependencies needed
function escapeHTML(str) {
  return str
    .replace(/&/g, '&amp;')
    .replace(/</g, '&lt;')
    .replace(/>/g, '&gt;')
    .replace(/"/g, '&quot;')
    .replace(/'/g, '&#039;');
}

function unescapeHTML(str) {
  return str
    .replace(/&amp;/g, '&')
    .replace(/&lt;/g, '<')
    .replace(/&gt;/g, '>')
    .replace(/&quot;/g, '"')
    .replace(/&#039;/g, "'");
}

// Or use the DOM (browser/jsdom)
const div = document.createElement('div');
div.textContent = '<script>alert("xss")</script>';
const safe = div.innerHTML;

Try the tool directly

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Open Html Encoder

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