HTML Entity Encoder / Decoder

Our HTML Entity Encoder / Decoder is a fast, privacy-first utility designed for web developers, content editors, and security-conscious users who need to safely convert special characters into HTML entities — or reverse the process — without ever uploading sensitive text to a remote server.

The tool uses a lightweight, detached DOM element mechanism to perform encoding and decoding. When you click Encode HTML, the tool creates an in-memory <textarea> element, sets its textContent to your raw input, and reads back the browser-native innerHTML representation. The browser automatically escapes all special characters: < becomes <, > becomes >, & becomes &, and quotes become " and '. This produces a safe string you can embed directly into HTML documents, blog posts, CMS editors, or email templates without the code being interpreted as markup.

When you click Decode HTML, the reverse process occurs. The tool sets the innerHTML of the detached element to your encoded string and reads back the decoded value. All named entities (<, >, &, ",  , ©) and numeric entities ({, {) are converted back to their original characters instantly.

Everything runs entirely in your browser. Your text, code snippets, and entity strings are never transmitted, logged, or stored on remote servers. This makes our HTML Entity Encoder / Decoder ideal for encoding sensitive API payloads, sanitizing user-generated content, preparing code examples for documentation, or working in air-gapped and high-security environments.