HTML Entity Encoder and Decoder
HTML entities provide a textual representation for characters that have special meaning in HTML. Encoding can help represent text safely in HTML contexts, but correct contextual escaping is still required.
Quick answer
Encode or decode HTML entities such as ampersands, angle brackets, and quotes. The core operation is designed for quick browser-based use without an account.
How to use this tool
- Enter text
- Choose encode or decode
- And run the operation. review the output in the context where it will be used.
Common errors and things to check
Escaping requirements depend on context: HTML text, attributes, URLs, JavaScript, and CSS are not interchangeable security contexts.
Common use cases
- Inspecting escaped HTML
- Preparing test fixtures
- Debugging entity-encoded content
Privacy and local processing
Core processing for this tool is designed to happen in your browser. The page does not intentionally upload ordinary tool input to a DataToolBase server. Do not paste passwords, private keys, access tokens, personal data, or other sensitive secrets unless you have verified the security requirements for your use case.
Frequently asked questions
Does HTML encoding prevent all XSS?
No. Correct output encoding must match the context, and applications should use safe templating and input handling.
What characters are commonly encoded?
Characters such as `&`, `<`, `>`, quotes, and other representable characters can be encoded as entities.