URL Encode / Decode

Percent-encode or decode URL components.

URL Encode / Decode helps you percent-encode or decode URL components. Enter text, review the breakdown, and use the guidance below to understand what the number means — and what it does not. What the URL Encode / Decode calculator does URL Encode / Decode is built for everyday questions — shopping, home, travel, hobbies, and tech. Percent-encode or decode URL components. You enter text, then Simple Calculators computes the result instantly. Defaults are chosen to be easy to read — change any field to match your situation. How the math works Choose a Mode, Encode or Decode, and enter your text. Encoding leaves letters, digits and - _ . ! ~ * ' ( ) as they are and replaces everything else with a % code: a space becomes %20 and & becomes %26. Letters outside basic English, such as é or €, become several codes because they take more than one byte. Decoding turns the codes back into characters. The formula: Letters and digits stay the same; other characters become % codes (space → %20, & → %26). Decoding turns the % codes back into the original characters.