HTML Encoder (Escape HTML, Free, Secure)
Encode HTML special characters to prevent XSS attacks.
🛡️ Security: Use this to prevent XSS (Cross-Site Scripting) attacks by encoding user input before displaying it in HTML.
0 / 2,000 characters
Free tier: 2,000 characters.
Why Use an HTML Encoder?
HTML encoding (escaping) converts special characters like <, >, &, and " into HTML entities (<, >, &, "). This prevents browsers from interpreting user input as HTML/JavaScript code—critical for preventing XSS (Cross-Site Scripting) attacks. Without encoding, malicious users can inject <script> tags that steal cookies, hijack sessions, or deface websites.
Common Use Cases
- XSS prevention: Encode user-generated content (comments, reviews, forum posts) before displaying in HTML
- Display code examples: Show HTML/XML code snippets on web pages without browser execution
- CMS & blogs: Safely display user submissions in WordPress, Drupal, or custom CMSes
- API responses: Encode HTML strings in JSON payloads to prevent injection when rendered
- Email templates: Encode dynamic content in HTML emails to prevent rendering issues
Why This Tool?
- Security-focused: Encodes all dangerous HTML characters to prevent XSS attacks
- Instant encoding: Paste HTML and encode in milliseconds—no server requests
- 100% client-side: Your code never touches our servers—runs entirely in your browser
- Free forever: Unlimited encoding with no rate limits or premium tiers
Pro tip: Always encode user input before rendering in HTML. For decoding HTML entities back to text, use our HTML Decoder. For URL encoding, try URL Encoder.