HTML Encoder/Decoder

Convert between plain text and HTML entities with multiple encoding options

HTML Encoder

Convert text to HTML entities

Input Text
Encoded HTML
Options
Statistics
Input: 0 chars
Output: 0 chars
Entities: 0
Special Chars: 0
Encoding converts special characters to HTML entities

Understanding HTML Encoding & Decoding

HTML encoding (or "escaping") converts special characters (like <, >, &) into HTML entity representations (e.g., <, &, ©). Decoding reverses this. It's crucial for web security (preventing XSS), correct content display, and data integrity in HTML.

HTML Encoder/Decoder interface preview

How to Use HTML Encoder/Decoder?

  1. Input Text: Paste or type text/HTML into the input area.
  2. Select Mode: Choose Encode (text to entities) or Decode (entities to text).
  3. Configure Encoding Options:
    • Select Encoding Type (Named, Decimal, Hexadecimal).
    • Toggle options for newlines, quotes, non-ASCII characters.
  4. Process: Click "Encode"/"Decode" or enable "Auto Process".
  5. View & Use Output: Result appears in the output area. Copy or download.

Supported Encoding Entity Types

Named Entities

Most readable, e.g., < for <, & for &.

Covers common special characters.

Decimal Entities

Numeric representation, e.g., < for <.

Can represent any Unicode character.

Hexadecimal Entities

Hex numeric representation, e.g., < for <.

Alternative numeric, also for any Unicode char.

Key Features

Bidirectional Conversion: Seamlessly encode to and decode from HTML entities.
Multiple Entity Types: Supports Named, Decimal, and Hexadecimal entities for encoding.
Granular Encoding Control: Options for newlines, quotes, and non-ASCII characters.
Auto-Processing Option: Get instant results as you type or change settings.
Character Counts & Stats: View input/output lengths and processing details.
Easy Input/Output: Paste, type, upload, copy results, or download files.

Common Use Cases

Preventing XSS

Safely display user content by encoding it, blocking malicious scripts.

Displaying Code

Show HTML/XML snippets on a webpage without browser interpretation.

HTML Attributes

Embed text with special characters safely within tag attributes.

Internationalization

Ensure non-ASCII characters display correctly across systems.

Data Integrity

Store or transmit data with special characters without corruption.

Learning Tool

Understand HTML entity representations of characters.

Tips & Considerations

  • Choosing Entity Types: Named entities (e.g., <) are readable but limited. Numeric entities (Decimal: <, Hex: <) cover all characters.
  • Non-ASCII Characters: Use "Encode non-ASCII" for accented letters or symbols outside standard ASCII for maximum compatibility.
  • Security First: Always encode untrusted data before rendering in HTML. Ensure decoded entities are from a trustworthy source.
  • Context Matters: Encoding needs vary (HTML content, tags, URLs, attributes). This tool focuses on HTML content.

This HTML Encoder/Decoder tool simplifies managing special characters in web content, helping you build more secure and robust web applications.

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