URL Encoding converts special characters into a web-safe format (e.g., %20 for spaces), while Decoding reverts them to their original form—essential for handling query strings, APIs, and SEO-friendly URLs.
"Hello World!" → "Hello%20World%21"
"《Rickshaw Boy》" → "%E3%80%8ARickshaw%20Boy%E3%80%8B"
"Hello%20World%21" → "Hello World!"
"%E3%80%8ARickshaw%20Boy%E3%80%8B" → "《Rickshaw Boy》"