HTML Entity Encoder/Decoder
LiveEncode special characters to HTML entities or decode entities back to text.
Understanding HTML Entities & Character Encoding
HTML entities replace characters that have special meaning in HTML — angle brackets (<, >), ampersands (&), quotes (", '), and non-ASCII characters — with encoded sequences that render correctly in browsers without being interpreted as markup. Proper encoding prevents XSS (Cross-Site Scripting) attacks when displaying user-supplied content, ensures special characters display correctly across different character encodings, and prevents malformed HTML when embedding content in attributes or script contexts.
Encode special characters (like <, >, &, quotes) into HTML entities for safe embedding in web pages, or decode HTML entities back to readable characters. Supports named and numeric entities.
The Devkitr HTML Entity Encoder/Decoder converts text between raw characters and their HTML entity equivalents. Encode special characters for safe HTML embedding, or decode entity sequences back to readable text. Supports named entities (&), decimal entities (&), and hexadecimal entities (&).
In a typical development workflow, HTML Entity Encoder/Decoder becomes valuable whenever you need to encode special characters to html entities or decode entities back to text. Whether you are working on a personal side project, maintaining production applications for a company, or collaborating with a distributed team across time zones, having a reliable browser-based processing tool eliminates the need to install desktop software, write one-off scripts, or send data to third-party services that may log or retain your information. Since HTML Entity Encoder/Decoder processes everything locally on your device, your data stays private and your workflow stays uninterrupted — open a browser tab, paste your input, get your result.
Key Features
Named Entity Encoding
Converts characters to readable named entities when available (&, <, >, ", ') for maintainable HTML source.
Numeric Entity Support
Encodes characters as decimal (&) or hexadecimal (&) entities for characters without named entity equivalents.
Full Unicode Support
Encodes any Unicode character including emoji, mathematical symbols, and non-Latin scripts to their HTML entity representations.
Selective Encoding
Choose whether to encode only HTML-special characters (<, >, &, ", ') or encode all non-ASCII characters for maximum compatibility.
How to Use HTML Entity Encoder/Decoder
Enter Text to Encode
Paste text containing special characters, HTML snippets, or any content you need to encode as HTML entities.
Select Encoding Mode
Choose named entities (readable), decimal entities (universal), or hexadecimal entities based on your requirements.
Review Encoded Output
Verify that all special characters are properly encoded while regular text remains readable.
Copy or Decode
Copy the encoded text for HTML embedding, or switch to decode mode to convert entities back to raw characters.
Use Cases
Displaying Code Snippets in HTML
Encode code containing < and > for display in HTML pages without the browser interpreting angle brackets as tags.
Sanitizing User Input for Display
Encode user-submitted content before rendering in HTML to prevent XSS — converting < to < neutralizes injected script tags.
Email Template Content
Encode special characters in email HTML templates to ensure correct rendering across different email clients and character sets.
Decoding Scraped Content
Decode HTML entities from scraped web content back to readable text for data processing and analysis.
Pro Tips
Always encode the five HTML-special characters: < > & " ' — these are the minimum encoding required for safe HTML embedding.
Use named entities (&) for readability in hand-edited HTML, and numeric entities (&) for characters without named equivalents.
In a security context, encode first and sanitize separately — encoding prevents character interpretation while sanitization removes dangerous patterns.
For JSON embedded in HTML <script> tags, use JSON-specific escaping rather than HTML entity encoding — they serve different purposes.
Common Pitfalls
Double-encoding already encoded content
Fix: Encoding & again produces &amp; which displays as "&" instead of "&". Check whether input is already encoded before encoding.
Relying on HTML encoding as the sole XSS defense
Fix: HTML encoding is necessary but not sufficient. Also use Content-Security-Policy headers, input validation, and proper output context handling.
Encoding entire URLs instead of just query parameter values
Fix: URL encoding and HTML encoding are different. Use URL encoding (encodeURIComponent) for URL parts and HTML encoding for HTML content.
Frequently Asked Questions
QWhat are HTML entities?
HTML entities are special codes (like & for &, < for <) that represent characters that would otherwise be interpreted as HTML markup.
QWhen should I encode HTML entities?
Whenever you display user-generated content on a webpage to prevent XSS attacks and rendering issues.
QDoes it support named and numeric entities?
Yes. Both named entities (like &) and numeric entities (like & and &) are supported.
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