URL Encoder & Decoder
Encode or decode URLs and query parameters. Handles Unicode, special characters, and percent-encoding. 100% client-side.
No data sent to serverRelated Tools
What is URL Encoding?
URL encoding, also known as percent-encoding, is a mechanism for converting special characters into a format that can be safely transmitted within a URL. Characters that have special meaning in URLs (such as spaces, ampersands, and question marks) or non-ASCII characters (such as Korean, Chinese, or emoji) are replaced with a percent sign followed by their hexadecimal representation.
Why is URL Encoding Needed?
URLs can only contain a limited set of ASCII characters. When you need to include spaces, special characters, or international text in a URL or query parameter, they must be percent-encoded to ensure the URL is valid and the data is transmitted correctly. Without proper encoding, URLs can break or be misinterpreted by browsers and servers.