HTML Entity Encoder & Decoder
Convert special characters and reserved symbols into HTML named and numeric entities (e.g. < to <) to prevent XSS vulnerabilities, or decode entities…
How to Use the HTML Entity Encoder & Decoder
- 1 Select mode: "Encode to HTML Entities" or "Decode Entities to Text".
- 2 Paste your raw text or code snippet in the input area.
- 3 Instantly copy the safe encoded or decoded string.
Methodology & Algorithmic Standards
Implements safe DOM-based text node mapping and standard entity tables for reserved HTML characters: `&` $\to$ `&`, `<` $\to$ `<`, `>` $\to$ `>`, `"` $\to$ `"`, `'` $\to$ `'`.
Frequently Asked Questions
Why must characters like < and > be encoded? ▼
Browsers interpret raw `<` and `>` as HTML tags. Failing to encode them in user-supplied content causes broken layouts and severe Cross-Site Scripting (XSS) risks.
Does this handle accented characters and emojis? ▼
Yes. It converts Unicode symbols and accents into standard numeric character references (`&#...;`).
Can I swap input and output text? ▼
Yes, click "Swap" to reverse translation instantly.
Explore Related Developer Tools
JSON Formatter, Minifier & Syntax Linter
Fast, client side JSON beautifier, minifier, and error linter. Safely formats code with 2 space or 4 space indentation and pinpoints exact syntax error line numbers.
Base64 Text & String Encoder / Decoder
Safely encode and decode UTF8 text and Unicode characters to and from Base64 with instant copy, byte telemetry, and zero server logging.
URL Slug & Query Parameter Parser
Deconstruct any web URL into protocol, host, port, path, and an interactive editable table of query parameters with live re assembly and copy.