Learn what URL encoding is, how percent encoding works, why special characters must be encoded in URLs, and how developers safely transmit data through URLs.
URL encoding is a method used to convert special characters in URLs into a format that browsers and servers can safely understand.
It is also called:
URLs can only safely contain certain characters. Spaces and special symbols may break URLs or create incorrect requests.
URL encoding converts unsafe characters into a standardized format.
For example:
Unsafe characters are converted into a percent sign followed by their hexadecimal ASCII value.
Without encoding, URLs may:
Query strings often require encoding because they contain symbols like:
Example:
URL encoding and Base64 serve different purposes.
Encode and decode URLs instantly in your browser.
Open URL Encoder DecoderJavaScript provides built-in URL encoding functions.
URL encoding safely converts special characters into formats browsers and servers can understand.
Spaces are unsafe in URLs, so they are encoded using their hexadecimal ASCII value.
Percent encoding is another name for URL encoding because encoded characters use the % symbol.
Yes. Many APIs require properly encoded query parameters and URLs.
URL encoding is a core part of modern web development. It ensures URLs remain safe, readable, and compatible across browsers, servers, APIs, and applications.
Understanding how URL encoding works helps developers avoid broken links, invalid requests, and incorrect query parameters.