How to Use HTML Encoder/Decoder
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1. Paste HTML or Encoded Text
Enter raw HTML containing special characters, or paste an already-encoded HTML entity string.
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2. Choose Encode or Decode
Select Encode to convert characters to HTML entities, or Decode to convert entities back to readable text.
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3. Copy the Output
The result appears right away. Copy the encoded or decoded text to your clipboard.
The Technical Details
This interactive web utility provides fast, reliable, and completely private data transformations. In modern workflows, quick formatting, conversions, or estimations are essential. By running all logic entirely in your browser with client-side JavaScript, this tool guarantees that your data never leaves your machine. This approach delivers maximum performance and absolute data privacy, as no information is ever sent to a server.
Frequently Asked Questions
What is the difference between named and decimal entities?
Named entities use readable names like < while decimal entities use numeric codes like <. Both are valid HTML.
When should I encode HTML?
Encode HTML when displaying user-generated content on a page to prevent cross-site scripting (XSS) attacks.
Is my data sent to a server?
No. All encoding and decoding runs in your browser; nothing is ever uploaded.
Which special characters are included?
The tool encodes all HTML special characters including <, >, &, ", ', and optionally all non-ASCII characters.