HTML Encoder & Decoder
Convert special characters to HTML entities or decode HTML entities back to their original characters for safe web display.
Related Tools
How to Use
- Enter Text or HTML Entities — Paste text containing special characters to encode, or paste a string with HTML entities to decode.
- Select Encode or Decode — Choose whether to convert special characters into HTML entities or restore entities back to their original characters.
- Use the Output — Click Encode / Decode, then copy the result for safe insertion into HTML source code or documents.
About the HTML Encoder & Decoder
The WritePadPro HTML Encoder and Decoder converts special characters into their HTML entity equivalents and reverses the process to restore readable text from entity-encoded strings. This tool is indispensable for web developers, content managers, email template builders, and anyone who works directly with HTML source code.
The Role of HTML Entities
HTML uses a handful of characters as structural markers: the angle brackets (< and >) define tags, the ampersand (&) begins entity references, and quotation marks delimit attribute values. When these characters must appear as visible content — for example, showing a code snippet in a blog post — they need to be encoded as entities (<, >, &, "). Without encoding, the browser misinterprets the content as markup, leading to broken layouts or, worse, security vulnerabilities.
Preventing Cross-Site Scripting (XSS)
XSS is among the most prevalent web security threats. It occurs when user-submitted content is rendered as HTML without proper sanitization. An attacker can inject a script tag that steals cookies, redirects users, or defaces the page. HTML encoding is the first line of defense: by converting every < to < and every > to >, the injected code is rendered as harmless text. Security organizations including OWASP recommend output encoding as a mandatory practice for all web applications.
Named, Decimal, and Hexadecimal Entities
The HTML specification defines named entities for common characters: & for ampersand, < and > for angle brackets, for non-breaking space, © for the copyright symbol, and many more. For characters without named entities, decimal (— for an em dash) and hexadecimal (—) numeric references are available. WritePadPro recognizes and converts all three formats, giving you flexibility based on your project requirements.
Email Template Development
Email HTML rendering engines — from Outlook to Gmail — are notoriously inconsistent. Special characters that display correctly in a browser may break in email. Encoding these characters as entities ensures reliable rendering across every email client. Template developers paste their content into this tool to generate entity-safe output before embedding it in their email markup.
Content Migration and CMS Work
When migrating content between content management systems, databases, or static-site generators, HTML entities can become double-encoded (e.g., &) or incorrectly decoded. This tool helps content managers identify and fix encoding issues by providing clean, one-pass encoding and decoding. Paste the problematic content, decode it fully, then re-encode it once to produce correct output.
Offline-Capable and Private
All processing happens in your browser. Sensitive HTML — draft templates, client code, or security-tested payloads — never touches an external server. Results are immediately available for copying or downloading. Pair the HTML Encoder with the Strip HTML Tags tool to create a complete HTML content processing workflow: encode for safe display, or strip tags entirely for plain-text extraction.
Frequently Asked Questions
What are HTML entities?
HTML entities are special codes that represent characters which have reserved meaning in HTML or cannot be typed easily. They begin with an ampersand (&) and end with a semicolon (;). For example, < represents the less-than sign (<), & represents the ampersand (&), and © represents the copyright symbol.
Why do I need to encode characters for HTML?
Characters like <, >, &, and " have special roles in HTML syntax. If you include a raw < in your content, the browser interprets it as the start of an HTML tag. Encoding it as < tells the browser to display the literal character instead of parsing it as markup. This prevents rendering errors and cross-site scripting (XSS) vulnerabilities.
What is the difference between named and numeric HTML entities?
Named entities use descriptive labels (e.g., ♥ for a heart symbol). Numeric entities use the character's Unicode code point in decimal (♥) or hexadecimal (♥) form. Named entities are more readable, but numeric entities cover every Unicode character regardless of whether a name exists.
How does HTML encoding prevent XSS attacks?
Cross-site scripting (XSS) occurs when an attacker injects malicious HTML or JavaScript into a web page. By encoding user-supplied input — converting < to < and > to > — the browser treats the content as display text rather than executable code, neutralizing the attack vector.
Does the tool handle emojis and special symbols?
Yes. Emojis and symbols outside the basic ASCII range are converted to their numeric HTML entity equivalents. For example, the rocket emoji becomes its hexadecimal entity representation, ensuring it displays correctly across all browsers and email clients.
Can I decode HTML entities found in web scraping output?
Absolutely. When you scrape web content, text often contains encoded entities like &, ", and numeric codes. Paste the scraped text into the decoder to restore all entities to their original characters, producing clean, readable output.