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HTML Entity Encode/Decode
HTML Entity Encode & Decode — Free Online Tool
Convert special characters to HTML entities and back.
About HTML Entity Encode/Decode
HTML entities are used to represent special characters like <, >, &, and quotes in HTML documents. Without proper encoding, these characters can break your HTML structure or create security vulnerabilities like cross-site scripting (XSS). This tool encodes text by replacing special characters with their HTML entity equivalents (for example, & becomes & and < becomes <) and decodes HTML entities back to their original readable characters. This is essential for web developers who need to safely embed user-generated content in HTML pages, display code snippets in web pages without the browser interpreting them as markup, and prepare text for inclusion in HTML attributes. The tool handles both named entities (like & and ©) and numeric entities (like ©). It is also useful for content writers who need to include special symbols like copyright marks, em dashes, or mathematical symbols in HTML.
Questions
Is my data sent to a server?
No. All processing happens locally in your browser. No data leaves your device.
What are HTML entities?
HTML entities are special codes that represent characters in HTML. For example, < represents <, & represents &, and represents a non-breaking space. They prevent browsers from interpreting characters as HTML markup.
When should I use HTML entities?
Use HTML entities when displaying special characters in HTML content — especially <, >, &, and quotes — to prevent them from being interpreted as HTML tags or attributes.
Does it support named and numeric entities?
Yes. The tool handles both named entities (like &) and numeric entities (like & or &).
Is my file uploaded to a server?
No. Transmute processes everything locally in your browser using JavaScript and WebAssembly. Your files never leave your device — there is no server, no upload, no cloud processing.