HTML entity encoder and decoder

  1. Input
  2. Options
  3. Result

Options

Entity representation

The text is processed locally and is never rendered as HTML. Up to 100,000 characters; decoding performs one pass and requires a closing semicolon.

HTML escaping is not an HTML sanitizer or a JavaScript/URL encoder. Decoding can restore markup as plain text. Preserve-existing mode keeps recognized references, while unknown names are escaped normally.

Quick start

HTML entity encoder and decoder

  1. Enter the data or choose a source file.
  2. Review the options and start the tool.
  3. Check the result and download the required format.
✓ The tool runs directly in the browser and is ready for quick checks without installing software.
✓ Input can be cleared and recalculated immediately, which is useful for repeated small tasks.
✓ Use fullscreen mode when you need more space for long text, structured data or large result blocks.
✓ Copy buttons are available on generated output so results can be reused in code, documents or support chats.
✓ Most operations are deterministic: the same input and options produce the same output.
✓ For sensitive content, prefer local browser tools and review the result before sharing it further.

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