URL Encoder & Decoder — Free Online Tool

URL Encoder & Decoder

Percent-encode special characters for use in URLs, or decode encoded URL strings back to readable text.



When to URL Encode?

URL encoding replaces unsafe ASCII characters with a “%” followed by two hexadecimal digits. Spaces become %20, & becomes %26, and so on. Always encode query string values when building URLs programmatically to prevent injection attacks and malformed requests.

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