100% Client-Side URL Tool

URL Encoder & Decoder

Encode or decode strings using percent encoding rules. Safe query string handling, done entirely in your browser.

Space encoding:
Input Text or Encoded URL
Result
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Understanding URL Percent Encoding

URL encoding (percent-encoding) is a mechanism for encoding information in a Uniform Resource Identifier (URI) under certain circumstances. Characters like spaces, ampersands, or question marks have special meanings in URL query structures. Encoding maps these characters to their hexadecimal equivalents prefixed with a percentage symbol (e.g. space becomes %20 or +). Our converter uses the JavaScript runtime library inside your browser, so no raw parameters, query credentials, or page parameters are transmitted across the web.