ToolsXpo

HTML Entity Encoder

Convert sensitive characters into safe HTML entities to prevent XSS attacks and ensure correct rendering in web browsers.

Configuration

Encode only <, >, &, ", '

This tool has an API.Automate it from your code — 1 credit/call.Open in Playground
0 chars0 lines
1
0 chars0 lines
1

Mastering HTML Encoding for Web Security

HTML encoding is a fundamental security practice used to convert plain text into a format that is safe to display in an HTML document. By converting characters like < and > into &lt; and &gt;, you prevent the browser from interpreting them as actual code, effectively neutralizing Cross-Site Scripting (XSS) threats.

Common HTML Entities

&&amp;
<&lt;
>&gt;
"&quot;
'&#39;
©&copy;
€&euro;
&nbsp;

About HTML Entity Encoder

Convert sensitive characters into safe HTML entities to prevent XSS attacks and ensure correct rendering in web browsers. It's built for encoding, hashing and cryptographic workflows where an exact, reversible transform matters, runs instantly, and works on any device — no install, no sign-up.

How to use HTML Entity Encoder

  1. Paste or type your input into the editor on the left.
  2. Leave the defaults, or tweak them if the tool exposes options.
  3. The result appears instantly on the right — everything runs in your browser, so nothing is uploaded.
  4. Copy the output, or download it, and you're done.

Why use HTML Entity Encoder?

  • Fast and local — the transform happens in your browser, so there's no round-trip and no waiting.
  • Private by default — your input never leaves your device.
  • Accurate — the same, well-tested logic powers both this page and the public API.
  • Free — unlimited use in the browser, with an optional API for automation.

Use it from the API

Everything this page does is also available as a REST endpoint, so you can call HTML Entity Encoder from your own code, a script or a CI pipeline.

Bash
curl "https://api.toolsxpo.com/v1/html-encode" \
  -H "Authorization: Bearer txp_live_YOUR_KEY"

The endpoint returns a JSON envelope ({ ok, data, meta }) and costs 1 credit per successful call. Try it in the playground or browse the full API reference.

Frequently asked questions

Is HTML Entity Encoder free to use? Yes — use it in the browser as much as you like. The optional API has a free tier and pay-as-you-go pricing for heavy or automated use.

Is my data private? Yes. HTML Entity Encoder runs entirely in your browser — your input never leaves your device and nothing is logged or stored.

Can I automate HTML Entity Encoder? Yes — call the html-encode API endpoint from any language and script it into your workflow.

Related tools