encoding tool

HTML Entity Encoder

Escape HTML-sensitive characters into entity form when you need safer display in markup-heavy contexts.

Run Tool

Provide exact input, inspect deterministic output, and validate with a real endpoint or runtime.

Output

Enter values to see the result.

Behavior

This page converts characters like angle brackets and ampersands into HTML entity form. It is for documentation, examples, snippets, and plain display of markup-like text.

Preparing HTML examples for documentation or tutorials.
Showing markup-like text without letting it read like live tags.

Input / Output

“<div>” becomes “&lt;div&gt;”.
A snippet with angle brackets becomes easier to display as text instead of markup.

Edge Cases

Validate syntax first, then evaluate semantic correctness in the target system.
Treating entity encoding as a complete security solution for every HTML context.
Encoding text twice and ending up with noisy unreadable output.

Next Tool

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HTML Entity Decoder

Turn common HTML entities back into readable characters when markup-heavy snippets are hard to inspect.

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Base64 Encoder

Encode plain text into Base64 when you need a browser-side transformation for transport, debugging, or quick testing.

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URL Encoder

Encode text for safer placement in URLs and query strings when reserved characters need escaping.

System note: verify transformed payloads with a real endpoint before production use.

Important Use Notice

Browser-side developer helper only. Verify output against a real environment, and do not paste secrets, regulated personal data, private keys, tokens, or confidential client material unless you have permission and an approved workflow.