HTML Entities Encoder / Decoder
Encode special characters to HTML entities or decode HTML entities back to characters.
What is HTML Entities?
An HTML Entities Encoder/Decoder is a tool that converts special characters to their HTML entity equivalents and back. HTML entities are sequences beginning with & and ending with ; that represent characters with special meaning in HTML (like < > & ' ") or characters outside the ASCII range. Using entities instead of raw characters prevents HTML injection attacks and rendering issues.
The most common HTML entities are < for <, > for >, & for &, " for ", and ' for '. These five characters have structural meaning in HTML — using them unescaped in page content can break the HTML structure or, worse, allow attackers to inject malicious HTML through cross-site scripting (XSS) vulnerabilities.
Developers need HTML entity encoding when displaying user-generated content in web pages, generating HTML programmatically, working with CMS systems, writing blog posts about code, and debugging HTML rendering issues. The decoder is equally useful for reading entity-encoded content from APIs, databases, or legacy systems.
How to Use HTML Entities
- 1Step 1: Enter the text you want to encode or decode in the input area. For encoding, type or paste text containing special characters like <, >, &, quotes, or accented letters.
- 2Step 2: Choose 'Encode' to convert special characters to HTML entity sequences, or 'Decode' to convert entities back to their original character representations.
- 3Step 3: Click the action button to process the input. The tool will convert all applicable characters, either encoding the special characters to safe entity form or decoding entity sequences.
- 4Step 4: Review the output to ensure all special characters are properly encoded. Check that < became <, > became >, and & became & if you were encoding.
- 5Step 5: Copy the result and use it in your HTML template, blog post, email, code documentation, or wherever HTML-safe text representation is required for correct rendering.
Benefits of Using HTML Entities
- ✓XSS Prevention: Encoding user-provided content to HTML entities before rendering it in pages is a fundamental defense against Cross-Site Scripting (XSS) attacks and HTML injection vulnerabilities.
- ✓Correct HTML Rendering: Characters like < and > in text content must be entity-encoded or browsers will misinterpret them as HTML tags, breaking page layout and content display.
- ✓Code Display in HTML: Displaying source code examples in web pages requires encoding all angle brackets and ampersands so browsers render the literal characters instead of interpreting them as tags.
- ✓CMS Compatibility: Many CMS platforms and blog engines encode HTML entities when saving content. A decoder helps read and edit this content in its original form.
- ✓Email Safety: HTML emails that include user data or special characters benefit from entity encoding to prevent rendering issues across different email clients with varying HTML parsers.
- ✓Internationalization Support: Named entities like é (é), © (copyright), and — (em dash) provide a reliable way to include these characters in HTML regardless of file encoding.
Example
About HTML Entities
HTML Entities converts special characters like <, >, &, and quotes to their HTML entity equivalents and back. It's used to safely embed user content in HTML and prevent XSS vulnerabilities. Handles named entities and numeric character references.
- Encodes special chars to HTML entities
- Decodes HTML entities to plain text
- Named and numeric entity support
- XSS-safe content preparation