Free Online
HTML Encoder & Decoder
Use the free online HTML Encoder & Decoder to escape and unescape HTML entities for safe display in web pages or to debug markup. Whether you need to convert < to <, decode & back to &, or sanitize user input for documentation, this privacy-first tool runs entirely in your browser—no data is sent or stored.
HTML encoding is essential for web security and proper content display. Our tool handles all common HTML entities including special characters, mathematical symbols, currency signs, and punctuation marks. Perfect for developers, content creators, and anyone working with web content who needs to ensure proper HTML entity handling without compromising security or functionality.
"Secure. Fast. Private. Your HTML entities, handled with care."
Encode or Decode HTML Entities Instantly
Enter your text below and choose to encode or decode HTML entities with our HTML encoder tool.
Why Use Our HTML Encoder/Decoder?
Browser-based, secure, and instant HTML entity processing for developers and content creators.
Our HTML encoder/decoder provides enterprise-grade functionality with zero privacy concerns. Built specifically for developers who need reliable, fast, and secure HTML entity processing without external dependencies or data exposure risks.
Browser-based & Private
All HTML encoding and decoding happens locally in your browser with no tracking or data uploads.
Support for Common Entities
Escape <, >, &, ", ', and more special characters instantly.
Instant Decode
Turn HTML entities back into readable text immediately with real-time processing.
Offline Friendly
Works without internet once loaded, perfect for secure environments and offline development.
Supported Entity Types
Common HTML entities that our encoder/decoder handles automatically.
Our comprehensive HTML entity support covers the full spectrum of special characters, mathematical symbols, and international characters commonly used in web development. From basic HTML entities to advanced Unicode representations, we ensure accurate encoding and decoding for all your web content needs.
How to Escape and Unescape HTML
Simple steps to encode or decode HTML entities with our HTML encoder tool.
Our streamlined process makes HTML entity handling effortless. Whether you're encoding user input for security or decoding content for readability, our tool provides instant results with professional-grade accuracy. The intuitive interface ensures even complex HTML entity operations are completed in seconds.
Choose Mode
Select "Encode HTML" to escape special characters or "Decode HTML" to convert entities back.
Paste Your Text
Enter HTML code, user input, or text with special characters into the input area.
Copy Results
Get instant results and copy the encoded or decoded text for use in your projects.
Common Use Cases for HTML Encoding
How our HTML encoder/decoder helps in web development, security, and content management.
HTML encoding serves multiple critical purposes in modern web development. From preventing cross-site scripting attacks to ensuring proper content display across different browsers and platforms, our tool addresses the most common and critical use cases that developers encounter daily.
Escape HTML to prevent XSS attacks and safely display user-generated content in web applications.
Encode HTML entities for safe storage in databases or display in documentation and blogs.
Ensure special characters display correctly in HTML emails and web-based messaging systems.
FAQ – HTML Encoder/Decoder
Common questions about HTML encoding, decoding, and our privacy-first HTML encoder tool.
Understanding HTML encoding and decoding is crucial for web security and content management. Our comprehensive FAQ section addresses the most common questions developers have about HTML entities, security implications, and how our tool ensures both functionality and privacy.
An HTML encoder/decoder converts special characters to HTML entities (like < to <) and back, helping safely display content on web pages or process markup without rendering issues.
Escaping HTML prevents code from being interpreted as markup, which is essential to avoid rendering issues or cross-site scripting (XSS) vulnerabilities when displaying user input on web pages.
Yes. This HTML encoder/decoder tool allows you to decode HTML entities like & or < back into their original characters (&, <) instantly with one click.
Yes. All HTML encoding and decoding happens in your browser. Nothing is sent to our servers and no data is stored. Your content remains completely private.
Once the page loads, the HTML encoder/decoder works offline because all logic runs locally in your browser without requiring an internet connection.
Related Developer Tools
Our HTML encoder/decoder works seamlessly with other developer tools in our suite. These complementary tools help you build, test, and maintain web applications with the same privacy-first approach and professional-grade functionality.
Technical Implementation Details
Understanding the technical aspects of HTML encoding and decoding for developers.
Our HTML encoder uses a comprehensive mapping system that covers all standard HTML entities defined by the W3C specification. The encoding process involves:
- Character pattern recognition using optimized regex
- Entity mapping with fallback handling
- Unicode support for international characters
- Performance optimization for large text blocks
The decoding process reverses HTML entities back to their original characters through:
- Entity pattern matching and validation
- Character replacement with error handling
- Support for both named and numeric entities
- Real-time processing for immediate results
HTML encoding is crucial for web security, particularly in preventing:
- Cross-site scripting (XSS) attacks
- HTML injection vulnerabilities
- Content spoofing and manipulation
- Data corruption in user-generated content
Our tool ensures maximum compatibility across different browsers and platforms:
- Modern browser support (Chrome, Firefox, Safari, Edge)
- Mobile device optimization
- Progressive web app capabilities
- Offline functionality once loaded
Our HTML Encoder/Decoder tool provides enterprise-grade functionality with zero privacy concerns. Whether you're securing user input, debugging HTML content, or ensuring proper content display, our tool delivers instant, accurate results while maintaining complete data privacy.
The comprehensive entity support, real-time processing, and professional-grade accuracy make this tool essential for developers, content creators, and anyone working with web content. Combined with our privacy-first approach, you get the security and functionality you need without compromising your data.
Pro Tip
Always encode user-generated content before displaying it on web pages to prevent XSS attacks. Our tool makes this process instant and reliable, ensuring your applications remain secure while maintaining optimal performance.