URL Encode / Decode

Convert strings to percent-encoding and back

Input
Result
Hello%20World%21%20%40%23%24%25

Related Tools

What is URL Encoding?

URL encoding, also known as percent-encoding, replaces unsafe ASCII characters with a "%" followed by two hexadecimal digits. For example, a space becomes "%20". This ensures that the text can be safely transmitted over the internet as part of a URL.

Frequently Asked Questions

Why do we need to encode URLs?
URLs can only be sent over the internet using the ASCII character-set. Characters outside this set, like spaces or emojis, must be replaced with a safe encoding to avoid being misinterpreted by the server.
What characters need encoding?
Common characters that are encoded include spaces, #, $, %, &, +, ,, /, :, ;, =, ?, @, [ ], and { }.