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URL Encoder / Decoder
Encode or decode URLs and query string parameters. Choose between component and full-URL encoding modes.
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About This Tool
URL Encoder and Decoder converts special characters in URLs to and from percent-encoding. Spaces become %20, ampersands become %26, and so on. Also handles query string encoding and full URL sanitization.
URL encoding is required when passing special characters in query parameters. Characters like ?, &, =, +, and # have special meaning in URLs and must be encoded when used as data values.
The tool handles both encodeURIComponent() (for individual values) and encodeURI() (for full URLs) semantics. All encoding runs in the browser using standard JavaScript URI functions.