HTML Entity Encoder / Decoder: guide & how to use

Toggle encode or decode and transform text using the DOM—handles named entities like & and common special characters. Useful for escaping snippets and templates. This guide is part of our guides library in the Developer tools category—Regex, JWT, cron, hashing, HTML entities, SQL formatting, permissions, HTTP reference, and JSONPath—browser-only.

What this tool does

HTML Entity Encoder / Decoder — Encode or decode HTML entities in the browser. It fits alongside other utilities on AI Tool Hub so you can solve small problems quickly without installing desktop software.

When it helps

Reach for this tool when your work overlaps with topics like: html, entity, encode, escape, unescape. Teams use these utilities for ad hoc checks during development, studying, content drafting, and light business calculations—always double-check critical numbers against your own policies or professionals when stakes are high.

How to use it

1. Open the tool using the button below.
2. Enter or paste your input in the workspace.
3. Review the output and copy or export it for your project.

Common questions

Is this safe for huge inputs?

Very large pastes may slow the tab; prefer chunks for megabyte-scale data.

Related tools

Pair this workflow with other utilities on the site:

• URL Encoder / Decoder

  Encode or decode URL components and full URIs.
• Markdown to HTML

  Turn Markdown into HTML with a live preview.
• JSON Formatter

  Format, minify, and validate JSON in the browser.

Privacy

Like most utilities in this category, HTML Entity Encoder / Decoder runs locally in your browser after the page loads—your content is not sent to our servers for processing.