Two-way Encoding
Real-time Processing
Copy to Clipboard
Export Results
Live Preview
Multiple Methods
Statistics
XSS Protection
Clear All
Detailed Info
Input Text
Text Statistics
0
Input Characters
0
Output Characters
0
Size Difference
0
Encoded Characters
Output Result
Live Preview
Preview will appear here after decoding...
Preview shows safe rendering of decoded HTML. Scripts and unsafe elements are filtered for security.
How to Use the HTML Encoder/Decoder Tool
What is HTML Encoding?
HTML encoding converts special characters into HTML entities, ensuring they display correctly in web browsers. For example, the less-than symbol (<) becomes < and the ampersand (&) becomes &.
Step-by-Step Guide:
- Enter Text: Type or paste your HTML code or plain text into the Input Text area.
- Choose Encoding Method: Select your preferred encoding method (HTML Entities, Hexadecimal, Decimal, or URL Encoding).
- Encode or Decode: Click "Encode HTML" to convert special characters to entities, or "Decode HTML" to convert entities back to characters.
- View Results: The converted text appears instantly in the Output Result area.
- Copy or Download: Use the action buttons to copy results to clipboard or download as a text file.
- Check Preview: View a safe rendering of decoded HTML in the Live Preview section.
Common Use Cases:
- Web Development: Safely embed user-generated content in web pages
- Security: Prevent Cross-Site Scripting (XSS) attacks by encoding output
- Data Transmission: Encode data for URL parameters or AJAX requests
- Content Management: Convert special characters in blog posts or articles
- Email Templates: Ensure proper rendering of HTML emails across clients
Encoding Methods Explained:
| Method | Example Input | Example Output | Best For |
|---|---|---|---|
| HTML Entities | <div> |
<div> |
General HTML encoding |
| Hexadecimal | <div> |
<div> |
Compact encoding |
| Decimal | <div> |
<div> |
Numeric representation |
| URL Encoding | Hello & World |
Hello%20%26%20World |
URL parameters |
Pro Tip
Always encode user-generated content before displaying it on your website to prevent XSS attacks. Use the "Check XSS" button to analyze potential security risks in your HTML.