Free HTML Entity Encoder & Decoder Online
Encode special characters to HTML entities (&, <, >, ) and decode HTML entities back to characters for safe web output and XSS prevention. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.
How It Works
Paste Text or HTML
Enter text with special characters or HTML with entities.
Encode or Decode
Choose Encode (text → entities) or Decode (entities → text).
Copy Safe Output
Copy encoded HTML for safe insertion into web pages.
Frequently Asked Questions
Related Developer Tools Calculators & Utilities
Interlinked precision tools in the Developer Tools collection.
URL Encoder & Decoder
Percent-encode special characters in URLs for safe transmission and decode percent-encoded URL strings back to readable text. Handles full URLs and query parameters.
Base64 Encoder & Decoder
Encode text or files to Base64 and decode Base64 strings back to plain text or binary files. Supports URL-safe Base64, UTF-8, and custom encoding options.
JSON Formatter & Validator
Format, validate, beautify, and minify JSON with syntax highlighting, error detection with line numbers, JSON path query, and schema validation.
Regex Tester & Debugger
Test regular expressions in real-time with match highlighting, group captures, flags, and built-in reference library of common patterns for emails, URLs, and dates.
Hash Generator (MD5, SHA-256, SHA-512)
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 cryptographic hashes from text input or files. Compare hashes for file integrity verification.
Secure Password Generator
Generate cryptographically secure passwords with custom length, character sets (uppercase, lowercase, numbers, symbols), and strength scoring via zxcvbn analysis.