HTML Encoder/Decoder
Encode HTML special characters to entities and decode HTML entities back to characters.
📋 How to Use
- Choose Encode or Decode mode.
- For encoding: paste text containing HTML characters (
<,>,&, etc.) in the input. - For decoding: paste HTML with entity codes (
<,&, etc.). - Click Encode/Decode — entities are converted instantly.
- Copy the safe encoded text to use in your HTML document or application.
About This Tool
HTML Encoder & Decoder — Convert HTML Entities Safely
HTML uses special characters for its syntax — <, >, &, ", and ' have specific meanings in HTML markup. When these characters appear in text content, they must be encoded as HTML entities to display correctly and prevent security vulnerabilities. Our HTML Encoder & Decoder handles all HTML entities instantly.
What Are HTML Entities?
HTML entities are special codes that represent reserved characters or characters that are difficult to type:
| Character | Entity Name | Entity Number |
|---|---|---|
| < | < | < |
| > | > | > |
| & | & | & |
| " | " | " |
| ' | ' | ' |
| © | © | © |
| ® | ® | ® |
| € | € | € |
Why Encode HTML?
Security — Preventing XSS attacks: Cross-Site Scripting (XSS) is one of the most common web vulnerabilities. If user-submitted text is inserted into HTML without encoding, attackers can inject malicious <script> tags. Proper HTML encoding neutralizes this threat.
Correct display: Characters like < and & break HTML rendering if not encoded. Encoding ensures they display as their literal character rather than being interpreted as HTML.
Character encoding: Encoding non-ASCII characters as entities ensures they display correctly even in documents with incorrect charset declarations.
Encoding Options
- Encode unsafe characters only: Encodes
<,>,&,",'— the minimum required for safe HTML output. - Encode all non-ASCII: Encodes every character outside the ASCII range as a numeric entity (
&#NNN;). - Named entities: Uses named entities where available (
<instead of<). - Numeric entities: Uses decimal numeric entities (
<) for maximum compatibility. - Hex entities: Uses hexadecimal entities (
<) preferred in XML/XHTML.
Use Cases for Web Developers
- CMS content: Safely displaying user-generated content in web pages.
- Code documentation: Displaying code samples with HTML tags as visible text.
- Email templates: Ensuring special characters render correctly in email clients.
- API responses: Encoding HTML in JSON strings for safe web rendering.
Encode and decode HTML entities now — free, instant, secure.