About URL Encoding & Decoding
URLs can only be sent over the Internet using the ASCII character-set. Since URLs often contain characters outside the ASCII set, they must be converted into a valid format. URL encoding (also known as percent-encoding) replaces unsafe ASCII characters with a
% followed by two hexadecimal digits.When to Encode?
Encoding is required whenever you pass data through a URL's query string. Special characters like spaces (%20), ampersands (%26), and equals signs (%3D) must be encoded to prevent the browser or server from misinterpreting them as delimiters.
Developer Use Cases
A URL decoder is frequently used by developers to read complex redirect URLs, analyze UTM parameters, or extract data from API endpoints. Our tool provides a secure, client-side way to quickly toggle between raw and encoded representations of any string.