HTML Entity Encoder/Decoder
Encode and decode HTML entities for safe web display. Convert special characters to HTML entities and vice versa. Safe, fast, and completely free.
Encode Text to HTML Entities
Enter your text below to encode special characters to HTML entities. Perfect for displaying text safely in HTML documents.
Decode HTML Entities to Text
Enter your HTML entity encoded string below to decode it back to readable text.
File HTML Entity Converter
Upload files to convert between text and HTML entities. Supports multiple file formats and batch processing.
Drop files here or click to browse
Supports TXT, HTML, XML, JSON, CSV, and more
HTML Entity Encoding Technical Details
Essential Characters
Characters that must be encoded to display correctly in HTML:
Entity Formats
Different formats for representing the same character:
Security Benefits
Prevents XSS attacks by safely displaying user input:
Universal Compatibility
Works across all browsers and HTML versions
W3C Validation
Helps HTML documents pass validation standards
HTML Entity Encoder/Decoder Features
Lightning Fast
Process large text and files instantly with optimized encoding/decoding algorithms.
100% Secure
All processing happens in your browser. No data is sent to our servers.
File Support
Upload and process files of any type up to 10MB in size.
Advanced Options
Multiple encoding modes, batch processing, and format selection.
Mobile Friendly
Works perfectly on all devices and screen sizes.
Download Results
Save your encoded/decoded results as files for later use.
HTML Entity Encoder/Decoder FAQ
What is HTML entity encoding?
HTML entity encoding is a method of representing special characters in HTML documents using entity names or numeric codes. It ensures that characters like <, >, &, and quotes display correctly and safely in web browsers.
When should I use HTML entity encoding?
Use HTML entity encoding when displaying user-generated content, special characters in HTML attributes, or when you need to prevent XSS attacks. It's essential for web security and proper content display.
What's the difference between named and numeric entities?
Named entities use descriptive names (< for <), while numeric entities use Unicode code points (< for <). Named entities are more readable, but numeric entities support all Unicode characters.
Is HTML entity encoding reversible?
Yes, HTML entity decoding perfectly reverses the encoding process. Our tool supports both directions - encoding text to HTML entities and decoding entities back to original characters.
Can I encode entire files?
Absolutely! Our file converter supports multiple formats including TXT, HTML, XML, JSON, and more. You can upload files up to 10MB and process them with batch operations.
Does this prevent XSS attacks?
HTML entity encoding is a crucial defense against XSS attacks. By encoding user input, dangerous HTML and JavaScript code becomes harmless text that displays safely in browsers.
Are hexadecimal entities supported?
Yes, our tool supports all three entity formats: named entities (<), decimal numeric (<), and hexadecimal numeric (<). You can choose your preferred format or let auto-detection handle it.
Is my data kept private?
Your privacy is guaranteed. All encoding and decoding happens locally in your browser using JavaScript. No text or files are ever sent to our servers or stored anywhere.
Can I process multiple files at once?
Yes, our batch processing feature allows you to upload and process multiple files simultaneously. Results can be downloaded individually or as a ZIP archive for convenience.
What encoding formats are supported for files?
We support UTF-8, ASCII, ISO-8859-1, and Windows-1252 character encodings. UTF-8 is recommended for maximum compatibility with international characters and symbols.
Does this work with Unicode characters?
Yes, our tool fully supports Unicode characters including emojis, international symbols, and special characters. All Unicode points can be encoded using numeric entities.
Can I customize the encoding options?
Absolutely! You can choose encoding scope (basic HTML, extended characters, or all non-ASCII), select entity format preferences, and enable live real-time processing for instant results.