HTML Encoder / Decoder
Encode special characters to HTML entities or decode HTML entities back to plain text. Prevent XSS and display HTML code safely in web pages.
Used 30.0K times today
How to Use HTML Encoder / Decoder
- 1
Enter your text or HTML
Paste your HTML string or plain text with special characters into the input area.
- 2
Choose Encode or Decode
Select "Encode" to convert characters like <, >, &, and " to HTML entities, or "Decode" to reverse the process.
- 3
Copy and use
Copy the output for safe rendering in HTML templates, blog posts, or code documentation.
Frequently Asked Questions
Why should I encode HTML characters?
What is the HTML entity for a space?
Does it handle numeric character references?
About HTML Encoder / Decoder
The HTML Encoder / Decoder is a critical security and content utility for web developers. Encoding user-generated content before inserting it into HTML prevents XSS (Cross-Site Scripting) vulnerabilities, one of the most common web security issues. It also lets you embed HTML code examples in tutorials and documentation without the browser interpreting the tags.
The decoder reverses the process, converting HTML entities like <, >, &, and " back to their literal character equivalents. This is useful when working with data extracted from HTML documents or when debugging escaped strings in API responses.
More Developer Tools Tools
JSON Formatter
Format, beautify, and validate JSON instantly. Paste raw JSON and get a clean, indented, human-readable output with syntax error detection.
JSON Minifier
Minify and compress JSON by removing whitespace and comments. Reduce JSON payload size instantly for faster API responses and smaller storage footprint.
JSON to CSV Converter
Convert JSON arrays to CSV format instantly. Transform nested JSON data into spreadsheet-ready CSV files with automatic header detection.
JSON to YAML Converter
Convert JSON to YAML format instantly online. Transform JSON config files, API schemas, and data structures into clean, readable YAML syntax.
Base64 Encoder / Decoder
Encode text or decode Base64 strings instantly online. Convert between plain text and Base64 encoding for data URLs, authentication headers, and API tokens.
URL Encoder / Decoder
Encode or decode URLs and query strings instantly. Convert special characters to percent-encoding and back for safe URL transmission and debugging.
UUID Generator
Generate UUID v1, v4, and v5 universally unique identifiers instantly. Create single or bulk UUIDs for databases, APIs, and distributed systems.
Regex Tester
Test and debug regular expressions in real time. Highlights matches, capture groups, and supports JavaScript regex flags for instant pattern validation.