Percent-encoding & HTML entities
URL & HTML Encoder
Encode and decode URLs and HTML entities.
Which URL encoding should I use?
"URL Encode" escapes every special character, which is what you want for a query-string value or path segment. "Encode Full URL" keeps characters like : / ? & = intact so a complete link still works. HTML encoding turns < > & and quotes into entities so text displays safely on a web page.